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Anatomy Chpt 8-12

Function of Epicranius Helps raise eyebrow
Function of Orbicularis Oculi Closes eye
Function of Zygomaticus Rasies corner of mouth
Function of Platysma Draws angle of mouth downward
Function of masseter Elevates mandible
Function of Temporalis Elevates mandible
Function of sternocleidomastoid Pulls head to one side, pulls head towards chest or raises sternum
Function of splenius capitis Rotates head, bends head to one side or brings head into upright position
Function of trapezius Rotates scapula & raises arm
Function of rhomboidus major Raises and adducts scapula
Function of Levator Scapula Elevates scapula
Pectoralis minor Pulls scapula anteriorly and downward
Function of coracobrachialis Flexes and adducts arm
Function of pectoralis major Pulls arm anteriorly & across chest, rotates humerus and adducts arm (CATEGORIZED WITH ARM)
Function of teres major Extends humerus & adducts arm
Function of Latissimus dorsi Extends and adducts arm. Rotates humerus
Function of supraspinatus Adducts arm
Function of deltoid Adducts arm, extends or flexes humerus
Function of subscapula Rotates arm medially
Function of infraspinatus Rotates arm laterally
Function of teres minor Rotates arm laterally
Function of biceps brachii Flexes forearm at elbow and rotates hand laterally
Function of Brachialis Flexes forearm at elbow
Function of Brachioradialis Flexes forearm at elbow
Function of biceps brachii flexes forearm at elbow and rotates hand laterally
Function of triceps Straightens arm
Function of Brachii Flexes forearm at elbow and rotates hand laterally
Function of function of triceps Straightens arm
Function of brachii Helps flex the forearm allowing the elbow to bend
Function of supinator Rotates forearm laterally
Function of pronator teres Rotates forearm medially
Function of flexor carpi radialis Flexes and adducts wrist
Function of flexor carpi ulnaris flexes and adducts wrist
Function of extensor carpi radialis Extends wrist and adducts hand
Function of extensor carpi ulnaris Extends and adducts wrist
Function of external oblique Tenses abdominal wall and compresses abdominal contents
Function of Internal Oblique Tenses abdominal wall and compresses abdominal contents
Function of transverse abdominis Tenses abdomina wall and compresses abdominal contents
Function of Rectus abdominis Tenses abdominal wall and compresses abdominal contents
Function of Psoas major Flexes thigh
Function of Gluteus maximus Extends thigh
Function of Gluteus medius Abducts and rotates thigh medially
Function of Gluteus minimus Abducts and rotates thigh medially
Function of adductor longus Adducts, flexes, and rotates thigh laterally
Function of adductor magnus Adducts, extends, and rotates thigh laterally
Function of sartorius Flexes leg and thigh, abducts and rotates thigh laterally and rotates leg medially
Function of biceps femoris Flexes leg,extends thigh
Function of semitendinosus Flexes leg, extends thigh
Function of simimembranosus Flexes leg, extends thigh
Function of Rectus femoris Extends leg at knee
Function of Vastus lateralis Extends leg at knee
Function of vastus medialis Extends leg at knee
Function of vastus intermedius Extends leg at knee
Function of Tibialis anterior Dorsiflexion and inversion of foot
Function of extensor digitorum longus Dorsiflexion and eversion of foot
Function of tibialis posterior Plantar flexion and inversion of foot
Function of flexor digitorum longus PLantar flexion and inversion of foot, flexion of the lateral toes
Function of gastrocnemius Plantar flexion of foot and flexion of leg at knee
MUSCLE INSERTION: Interbercular grooves of humerus Pectoralis major
Greater tubercle of humerus Supraspinatus
Lesser tubercle of humerus Infraspinatus
Deltoid tuberosity of humerus Deltoid
Radial tuberosity of radius Biceps brachii
Coronoid process of ulna Brachialis
Greater trochanter of femur Gluteus medius
Lesser trochanter of femur Psoas major, iliacus
Tibial tuberosity Tibia
SPECIFIC MUSCLES: Rotator cuff muscles Supraspinatus, infraspinatus, teres minor, subscapularis
Layer sequences of muscles of abdominal wall External oblique, internal oblique,transversus abdomonis, rectus abdomonis
Hamstring muscles and their common origin Biceps femoris: Ischial tuberosity and posterior surface of femur. Semitendinosus: Ischial tuberosity Semimembranosus: Ischial tuberosity
Origin & insertion: Biceps Brachii Coracoid provess and tubercle above glenoid cavity of scapula. Insertion: Radial tuberosity of radius
Origin & insertion: Triceps brachii Tubercle below glenoid cavity, lateral & medial surfaces of humerus. Insertion: Olecranon process of ulna
Origin & insertion: Gastrocnemius Lateral & medial condyles of femur. Insertion: Posterior surface of calcaneus
Sequence of the names of muscular microstructures Muscle, fascicles, muscle fibers, myofibrils, thick and thin filaments
Contents & characteristics of sarcolemma Mitochondria, nuclei, myofibrils, sarcoplamic reticulum
Function of neuromusclar junction and its nuerotransmitters CSite where the motor neruon and muscle fiber meet. Function: called synapse
Similarities and differences: Peripheral and central NS CNS: microglia, PNS: Macrophage. CNS: Astrocyte, PNS: Satellite cells
Similarities and differences: Autonomic & Somatic NS A: Usually 2 neurons. S: Single motor neuron. A:Striated muscle S:Smooth & cardiac muscles
Similarities and differences: Sympathetic & parasympathetic S: Fight and Run. P: Digest and rest. S: Inhibits flow of saliva. P:Stimulates flow of saliva. S: Accelerates heartbead. P: Slows heartbeat. S
Contents and characteristics of neurilemma Surrounds outer layer of myelin. Made up of the cytoplasm & nuceli of the Schwann cell
Function & location of nodes ranvier Transmits AP Saltatorily. In between Schwann cells
CHPT 10:
General senses by free nerve endings Touch and pressure
Referral pain def. Occurs because of the common nerve pathways leading from skin and internal organs
Smell: Cranial nerve 1 (Olfactory) Chemoreceptor. Smell and taste operate together to aid in food selection
Sight: Cranial nerve 2(Optic) Photoreceptor cells of light. Rod & Cone cells on retina
Equilibrium & hearing: Cranial nerve 8 (Vestibulocochlear) Smell, taste, hearing, equilibrium & sight
Taste: Cranial 9 (glossopharyngeal) Taste buds (12 total pairs of cranial nerves in our head)
Which specific nerve receptors are chemoreceptor or mechanoreceptor? Sensory receptors
Photoreceptor cells of light? Rods & cones cells on retina
Difference between rods & cones? Rods: Night, lower acuity but higher sensitivity, no color. Cones: Day, higher acuity but lower sensitivity, color.
What is the light sensitive pigment in rods? Rhodopsin (Visual purple)
Created by: GabbbLo



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