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NWHSU GA Quiz #3

NWHSU Gross Anatomy Exam #3

QuestionAnswer
Innervation of Pectoralis Minor Muscle? Medial Pectoral Nerve
Give the actions of the pectoralis major muscle? (both heads) (Both) Adduction, Horizontal adduction, Medial Rotation. (Clavicular head) Flexion of humerus. (Sternocostal head) extensions of humerus, assists anterior tilt of scapula.
Action of Teres Major Muscle? Extension, Medial Rotation, Adduction of Humerus
Innervation of Latissimus Dorsi? Thoracodorsal Nerve
Action of Infraspinatus Muscle? Lateral rotation, Extension of Humerus
Origin of Serratus Anterior? Lateral Surface of Upper 8 ribs
Innervation of Levator Scapulae? Dorsal Scapular Nerve; C3,4 spinal ns
Origin of Trapezius? (all three head) Upper: external occipital protuberance, Ligamentum Nuchae. Middle: C7-T3 Spinous Processes. Lower: T4-T12 Spinous Processes
Deep Muscle that inserts on the distal anterior radius? Pronator Quadratus
Insertion of Palmaris Longus? Palmar Aponeurosis & Flexor retinaculum
Origin of Brachialis Muscle? Lower half anterior shaft of humerus
Insertion of Flexor Pollicus Longus Muscle? Distal Phalanx of the Thumb
Action of Extensor Digitorum? Extension of 4 fingers at MP & IP joints. Assists extension of wrist.
Insertion of Extensor Carpi Radiallis Longus? Base of 2nd Metacarpal
Common Origin of extensors located in the forearm? Lateral Epicondyle of the Humerus
Insertion of Anconeus? Olecranon process and upper posterior surface of Ulna
Elevators of the Scapula? Upper Trapezius and Levator Scapulae
Abductors (radial deviators) of the wrist? Flexor Carpi radialis & Extensor Carpi radialis longus
Horizontal Adductors of the Humerus? Anterior Deltoid & Pectoralis Major
Innervation of serratus anterior muscle? Long Thoracic Nerve
Muscle which inserts into the upper lip and moves the upper lip upward and outward? Zygomaticus minor
Innervation of subscapularis muscle? Upper and lower subscapular nerves
Artery that supplies thenar muscles? Medial Artery
What do gray rami communicantes carry? (Be as specific as possible) Incoming postgaglionic sympathetic fibers
A Patient presents a sprained wrist caused by hyperextension? (Give a specific ligament damage)? Palmar radiocarpal ligament and palmar ulnarcarpal ligament
A patient with a "pulled elbow" (specifically the head of the radius has been pulled through it surrounding ligament). Give specific ligament damage. Annular Ligament
Name the 2 bursae associated with the superior anterior part of the shoulder joint? Subdeltoid bursae and subacromial bursae
What forms the INFERIOR (LOWER) border of the triangle of auscultation? Latissimus Dorsi Muscle
What forms the MEDIAL (UPPER) boarder of the triangle of auscultation? Trapezius Muscle
What forms the LATERAL (SIDE) boarder of the triangle of auscultation? Medial border of the Scapula
Nerve of the rhomboid muscles? Dorsal Scapular
Insertion of the latissimus dorsi muscle? Bicipital groove of the humerus
Action of the levator scapulae muscle? Elevation and downward rotation of scapula
Action of the teres major? Extension, medial rotation and adduction of the humerus
Origin of pectoralis minor muscle? Anterior surface of ribs 3, 4, 5 near costal cartilage
Insertion of the subscapularis Muscle? Lesser tubercle of the humerus
Innervation of serratus anterior muscle? Long Thoracic nerve
Innervation of subcavius muscle? Subclavian nerve
Origin of the levator scapulae? Transverse processes of C1-C4
Innervation of the latissimus dorsi? Thoracodorsal nerve
Action of the rhomboid muscles? Retraction and downward rotation of the scapula
Give the action of latissimus Dorsi? Adduction, medial rotation, extension of the humerus, downward rotation of the scapula, assists depression of the scapula
Insertion of the teres minor? Greater tubercle of humerus (inferior facet)
Give the action of the lower trapezius? Depression and upward rotation of the scapula
Origin of the brachialis muscle? Lower half of anterior shaft of humerus
Insertion of palmaris longus? Palmar aponerosis and flexor retinaculum
2 muscles which can act to rotate the radius so that the palm faces anteriorly? Supinator and Biceps Brachii
Name the muscle(s) in the anterior forearm that form(s) the superficial layer? (1) Pronator Teres (2) Flexor Carpi Radialis (3) Palmris longus (4) Flexor Carpi Ulnaris
Innervation of the triceps Brachii? Radial Nerve
What is the action of Extensor Digitorum? Extensor expansion of 4 fingers at MP & IP joints and Assists extension of wrist
Insertion of the subscapularis muscle? Lesser tubercle of humerus
Innervation of the subscapularis? Upper and lower subscapular nerves
Actions of the serratus anterior? Protraction, Upward rotation of the scapula, stabilizes scapula against chest wall, depression of scapula (lower fibers), assists forced exhalation
Muscle which inserts on the coracoid process of the scapula? Petoralis minor
Origin of the pectoralis minor muscle? Anterior surface of ribs 3, 4, 5 near Costal cartilages
Origin and insertion of the flexor pollicis longus? Origin: middle of anterior radius and interosseus membrane. Insertion: Distal phalanx of thumb
Abductors (protractors) of the scapula? Pectoralis Minor and Serratus Anterior
Medial (downward) rotators of the scapula? Levator scapulae, rhomboids, pectoralis minor, and latissimus dorsi
Anterior tilt of scapula? Pectoralis minor and pectoralis major (sternoclavicular head)
Lateral (upward) rotators of the scapula? Upper trapezius, Lower Trapezius, and Serratus Anterior
Innervation of flexor digitorum profundus? Radial 2 fingers via the Median nerve... and Ulnar 2 fingers via the ulnar nerves
Origin of the short head of Biceps Brachii? Coracoid Process
Name the deepest pronator of the forearm? Pronator Quadratus
Anterior muscle which causes downward rotation of the scapula? Pectoralis minor
Depressors of the Scapula? Pectoralis minor, Serratus Anterior (lower fibers), Lower Trapezius and Latissimus Dorsi
Adductors (retractors) of the scapula? Middle Trapezius and Rhomboids
Action of extensor carpi ulnaris? Extension and adduction of the wrist
Name the Elevators of the scapula? Upper Trapezius and Levator Scapulae
Name the upward rotators of the scapula. Be specific. Upper trapezius, lower trapezius and serratus anterior
Name the extensors of the Elbow? Triceps Brachii and Anconeus
Name the pronators of the forearm? Pronator Teres and Pronator Quadratus
Muscle that raises the upper lip? Levator Labii Superioris
Specific action of pars alaris of nasalis? Widens the nostrils
Specific artery that accompanies the radial nerve in the upper arm? Profunda Brachii
Artery which accompanies the phrenic nerve? Pericardiacophrenic artery
what vessles give rise to the dorsal metacarpal arteries? BE SPECIFIC!!! Dorsal carpal branch of the radius, Dorsal carpal branh of the unla, anterior interosseus artery
Terminal part (end) of the radial artery? Deep Palmar Arch
Name the direct branches of the 3rd part of the axillary artery? Posterior humeral circumflex artery, anterior humeral circumflex artery and subscapular artery
Specific branch of the basilar artery which helps supply the very large hemispheres of the brain? Posterior cerebral artery
Vessel which forms an anastomosis with the superficial palmar arch? Superficial palmar branch of the radial artery
Injury to any of these spinal nerve roots may affect the function of the ulnar nerve? (C7), C8, T1
A Baseball batter of thin build was severely hit by a wild pitch in the posterolateral aspect of the upper arm about midway up. what nerve would you check for possible injury? now briefly explain how you would perform the check? The Radial Nerve -- check for loss of function in the triceps, anconeus and the extensors of the forearm. Also, you could check for loss of sensation in the posterior lateral portion of the hand.
Injury to the musculocutaneous nerve would affect what muscles? Biceps brachii, coracobrachialis and brachialis - "BBC"
The musculocutaneous nerve runs primarily on the anterior surface of this muscle? Brachialis
This nerve passes between the deep and superficial heads of pronator teres? Median nerve
Spinal nerves (levels of the cord) which have white rami communicantes? T1-L2 or L3
What do gray rami communicantes carry? Be as specific as possible!! Incoming post-ganglionic sympathetic fibers
3 letter classification given to the anterior horn of the spinal cord? GSE
Give specific spinal cord segments for the descendens cervicalis (inferior root of ansa cervicalis). C2, C3
Give specific spinal cord segments for the Supraclavicular nerves? C3, C4
What does the ansa cervicalis innervate? BE SPECIFIC!! Sternohyoid muscle, sternothyroid muscle, and omohyoid muscle (inferior belly) - "SOS"
Alternate name for the C3 dorsal ramus (posterior primary division)? 3rd occipital nerve
Ligament torn in hyperadduction of the wrist?? Radial collateral ligament
ligament that holds the tendon of the long head of the biceps brachii in a groove? Transverse humeral ligament
The obturator nerve arises from the ______ division of the _______ plexus. anterior lumbar
The tibial nerve arises from the ________________ of the sacral plexus and carries fibers from cord segments ______________________. anterior division. L4, L5, S1, S2, S3
The upper subscapular nerve arises from the ____________ (be very!! specific)of the brachial plexus. Posterior cord
Name the hypothenar muscles: Opponens digiti minimi, abductor digiti minimi, flexor digiti minimi, and palmaris brevis
T/F Extensor pollicis longus forms the posterior border of the snuff box? true
T/F Lumbricals extend the MP and interphalangeal joints? False!! A: Flexion of fingers at MP joints, extension of fingers at PIP and DIP joints
T/F the palmar aponeurosis is proximally attached to the tendon of palmaris longus and the flexor retinaculum? True
T/F All interossei are innervated by the ulnar nerve? True
T/F The dorsal interossei abduct the 2nd, 3rd, and 4th digits? True
Which tendon does "the split" (In the palmar digits)? Flexor Digitorum Superficialis
Which tendon goes through "the split"? (In the palmar digits)? Flexor Digitorum Profundus
Muscles responsible for a specific action are called _________? Agonist
______________ stabilize the origin of a muscle? Fixator
_____________ Facilitates the action of other muscles by being an antagonist to an UNDESIRABLE MOTION, thus facilitating the action of the primary mover? Synergist
The cervical plexus comes from _________? Ventral rami
Name the 4 cutaneous branches (cervical plexus)? (1) lesser occipital nerve C2 (2) greater auricular nerve C2,3 (3) transverse cervical nerve C2,3 (4) supraclavicular nerves C3,4
Cutaneous branch to skin on posterior surface of ear and just posterior to ear? Lesser occipital nerve C2
____________ to most skin of ear, skin over parotid gland and mastoid process? Great auricular nerve C2,3
__________ To majority of skin of anterior neck Transverse cervical nerve C2,3
The lateral horn is only found where in the spine? T1-L2 (or L3)
White rami communicantes are attached where? T1-L2(or L3) and S2-s4 spinal nerves only
Gray rami communicantes are attached where? Attach to all spinal nerves
GVE goes to: Smooth muscle, cardiac muscle, glands
GSE goes to: Straight to skeletal muscle - no ganglion
GVEs are found where? Lateral horn
Give the 3 letter classification given to the lateral horn ? GVE
3 letter classification(s) given to the posterior horn? GVA and GSA
Which matter has Lots of neuron cell bodies? Grey matter
Which matter contains axons of the neurons? White matter
3 letter classification given to the neuron that goes all the way to skeletal muscle? GSE
To skin of shoulder and upper pectoral region? Supraclavicular nerves C3,4
Lessor occipital nerve? Cutaneous branch to skin on posterior surface of ear and skin just posterior to ear, C2
Great auricular nerve? Cutaneous branch to most skin of ear, skin over parotid gland and mastoid process, C2,3
Transverse cervical nerves? To majority of skin of anterior neck, C2,3
Supraclavicular nerves? To skin of shoulders and upper pectoral region, C3,4
Vagus nerve? Joins vagus at inferior ganglion of vagus C1,2 (CN 10)
Hypoglossal nerve? Geniohyoid (C1), thyrohyoid (C1), and meningeal br. (C1,2)
Define antagonist. Muscle responsible for a specific action.
Muscle responsible for a specific action? Antagonist
Phrenic nerve spinal segments? C3,4,5 to diaphragm
Define fixator? Stabilize the origin of a muscle
Define synergist? Facilitates the action of other muscles by being an antagonist to an undesirable motion, thus facilitating the action of the primary mover.
________ Produces the opposite action of an agonist. Antagonist
Which branch of the lumbar plexus supplies the the muscles and skin of abdominal wall? Iliohypogastric nerve, L1
Which branch of the lumbar plexus passes through the superficial inguinal ring? (( Muscles of abdominal wall and skin of scrotum/labia majora)) Ilioinguinal nerve, L1
Skin and muscles of the original anterior (flexor) surface of the lower limb in embryo are branches of what? Branches of anterior division
Branch of the anterior division that supplies skin and muscles of the medical compartment of thigh? Obturator nerve, L2,3,4
Skin and muscles of the original posterior (Extensor) surface of the lower limb in the embryo are branches of what? Branches of the posterior division
Injury to any of these spinal nerve roots may affect the function of the ulnar nerve? C5, 6, 7, 8 (T1)
Injury to musculocutaneous nerve would affect what muscles? Biceps brachii, coracobrachialis, and brachialis
Name the 2 ligaments that connect the scapula and clavicle? Conoid ligament and trapezoid ligament (combined makes the coracoclavicular ligament)
Ligament torn in hyperadduction of the wrist? Radial collateral ligament
The obtorator nerve arises from the ______________ division of the __________ plexus? ANTERIOR division of the LUMBAR Plexus
The tibial nerve arises from the _______________ of the sacral plexus and carries fibers from cord segments _____________. ANTERIOR DIVISION, cord segments: L4, L5, S1, S2, S3
The upper subscapular nerve arises from the ______________ (be very specific) of the brachial plexus. Posterior cord
Insertion of pectoralis minor muscle? Coracoid process of scapula
Insertion of the serratus anterior muscle? Vertebral boarder of scapula
Innervation of Trapezius? Accessory nerve (CNXI) spinal part (motor)
Action of the serratus Posterior superior? Elevation of ribs to increase thoracic cavity during inspiration
Besides elevation, the action of the levator scapulae on the scapula? Downward rotation of the scapula
Give the insertion of the trapezius? UPPER: lateral 3rd of clavicle and acromion of scapula MIDDLE: spine of scapula LOWER: root of spine of scapula
Insertion of flexor pollicis longus? distal phalanx of thumb
Insertion of flexor carpi ulnaris? pisiform and hamate carpal bones, base of 5th metacarpal
Muscle whose long tendon is often used for tendon repair, it is also sometimes absent? Palmaris longus
Origin of the LONG HEAD of the biceps brachii? supraglenoid tubercle
Name the muscle(s) in the anterior forearm that form(s) the INTERMEDIATE layer? Flexor digitorum superficialis
Action of the extensor carpi ulnaris? Extension and adduction of the wrist
Insertion of anconeus? Olecranon process and upper posterior surface of Ulna
Muscle that originates below the radial notch on posterior ulna and posterior capsule; it inserts between anterior and posterior oblique lines on anterior surface of proximal radius? Supinator Muscle
Origin of the lateral head of the triceps? Posterior humerus above spiral groove
A retractor of the scapula innervated by the dorsal scapular nerve? Rhomboids
Rotator cuff muscle that inserts on the lower facet of the greater tubercle? Teres minor
Name the extensors of the wrist? Extensor carpi radialis longus, extensor carpi ulnaris, Extensor carpi radialis brevis
Name the downward rotators of the scapula? Levator scapula, Rhomboids, pectoralis minor, latissimus dorsi
Action of the temporoparietalis muscle? Keep scapula tight
Muscle which raises upper lip and dilates nares? Levator Labii Superiorus Alaque nasi
Action of the mentalis? protrudes lower lip (pout) and wrinkles chin
Terminal part of radial artery? Deep palmar arch
Specific medially located vessel that contributes to the anastomosis on the dorsum of the wrist? Dorsal Carpal Branch of the Ulnar Artery
the cephalic vein travels on the _________ (medial, anterior, lateral) aspect of the upper limb and is a tributary to ___________________. Lateral. Axillary vein
______________________ specific artery that accompanies the radial nerve in the upper arm? Profunda brachii
Artery which accompanies the phrenic nerve? brachiocephalic artery
What vessels give rise to the dorsal metacarpal arteries? (BE SPECIFIC!!) Anterior interosseous artery, dorsal carpal branch of ulnar artery, and dorsal carpal branch of radial artery.
Term used to describe paired deep veins? Venae comitantes
Name the direct branches of the 3rd part of the axillary artery? posterior humeral circumflex artery, anterior humeral circumflex artery, and subscapular artery
Give the superior and inferior boundaries of the quadrangular space? Superior = Teres minor. Inferior = Teres major
The musculocutaneous nerve runs primarily on the anterior surface of this muscle? coracobrachialis muscle
The radial nerve carries fibers from these segments? C5,6,7,8, (T1)
Consider a deep(to the bone) laceration completely across the lower ANTERIOR wrist.(A)What Nervous component(s) would escape injury?(B)As depth increased, what nerve was cut fist? (a) superficial branch of radial nerve. (b) Ulnar nerve
The median nerve runs immediately deep to this muscle during most of its course trough the forearm? flexor digitorum superficialis
What do WHITE rami communicantes carry?? Be as specific as possible!! outgoing preganglionic sympathetic fibers. visceral afferent fibers!!
What forms the greater occipital nerve? Dorsal rami of C2, some C3
Give the specific cord segments that usually form the brachial plexus? C5,6,7,8, and T1
Give the specific cord segments that usually form the Great auricular nerve? C2, C3
Name the 3 hypothenar muscles? Flexor digiti minimi, Abductor digiti minimi, Opponens digiti minimi
Name the ligament of the shoulder immediately deep to subscapularis tendon; it has superior, middle, and inferior parts. IMMPORTANT: it doesn't attach to the coracoid process!! Glenohumeral ligaments
A patient presents a pulled elbow (specifically, the head of the radius has ben pulled through its surrounding ligament, thus tearing it). give the ligament damaged:? Annular ligament
The tibial nerve arises from the ________________ of the sacral plexus and carries fibers from cord segment(s) __________________. Anterior division. L4,5 and S1,2,3
The iliohypogastric and ilioinguinal nerves are branches of the _________ plexus and carry ________ cord segment(s) Lumbar. L1
The lower subscapular nerve arises from the _________________ of the brachial plexus. (NO SEGMENTS!!!!!) Posterior cord (C5,6)
Ligament which attaches at the lesser and greater tubercles of the humerus and forms a retinaculum for the tendon of the lateral head of the biceps brachii? Transverse humeral ligament
The suprascapular n comes from the _________________ of the brachial plexus Superior trunk
The subclavius n comes off the ___________________ of the brachial plexus Superior trunk
The three dorsal divisions of the brachial plexus go into the _____________________ Posterior cord
The three ventral divisions of the brachial plexus go into the _________________. Lateral and medical cords
The lateral pectoral nerve is a branch from the ____________________ of the brachial plexus Lateral cord
The upper subscapular nerve is a branch from the ________________ of the brachial plexus Posterior cord
The thoracodorsal nerve is a branch from the ___________ of the brachial plexus Posterior cord
The medial pectoral nerve is a branch from the _____________ of the brachial plexus. Median cord
Musculocutaneous nerve is a branch from the ________________ of the behavioral plexus Lateral cord
Axillary nerve is a branch from the _________________ of the brachial plexus Posterior cord
The radial nerve is a branch of the _____________________ of the brachial plexus. Posterior cord
The median nerve is a branch of the ____________________of the brachial plexus. Medial and lateral cords
The ulnar nerve is a branch off the___________ of the brachial plexus.. Medial cord
What is known as the "laughing muscle"? Zygomaticus major
What is known as the "Disdain" facial muscle? Levator anguli Oris
What is known as the "smile muscle"? Risorius
What muscle compresses the cheeks (Blow)? Buccinator
Which muscle protrudes lower lip (pout) wrinkles chin? Mentalis
Which muscle is known as the "kissing muscle"? Orbicularis Oris
Which muscle gives a person the "look of horror"? Platysma muscle
Which muscle moves the ear up? Superior Auricular muscle
Which muscle moves the ear back? Posterior Auricular muscle
Which muscle moves the ear forward? Anterior Auricular muscle
Which muscle keeps the scalp tight? Temporoparietalis m.
Which muscle raises the lip? Levator Labii Superioris
Which muscle raises the lip AND widens the nostrils? Levator Labii superioris Alaque Nasi
Which muscle gives you a furrowed brow? Procerus
Injury to these spinal segments may damage the ulnar nerve? (C7) C8, T1
Injury to these spinal segments may damage the median nerve? (C5) C6,7,8, T1
Damage to these spinal segments may damage the musculocutaneous nerve? C5,6,7
Created by: walkingbyfaith09