The Muscular System
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| Name the 3 types of muscle? | 1. Skeletal(striated)
2. Smooth(visceral)
3. Cardiac muscle
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| Are skeletal(striated)muscles voluntary(controlled) or involntary(uncontrolled)? | Voluntary
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| Identify 2 examples of skeletal(striated)muscle? | 1. Biceps Brachii
2. Triceps Brachii
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| What are the characteristics of tendons? | 1. Strong
2. Tough
3. Non-elastic
4. White
5. Collagenous
6. Fibrous
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| Is Smooth(visceral)muscle considered voluntary or involuntary? | Involuntary(Autonomic)
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| Where are examples of smooth muscle found? | 1. GI tract
2. Uterus
3. Blood vessels
4. Urinary bladder
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| Is Cardiac muscle voluntary or involuntary? | Involuntary
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| Why is cardiac muscle unique? | When one cardiac muscle cell is stimulated, all the cardiac muscle cells are stimulated
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| True or False: Cardiac muscle cells contract separately? | FALSE-Contract together
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| What do cardiac muscles have the unique ability to do? | Receive an impulse,contract,immediately relax,and then receive another impulse
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| A steady or constant state of partial contraction maintained in a muscle is called? | Muscle Tone
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| Some muscle cells in a muscle will always be contracting while other muscle cells are? | At rest
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| Muscles that are at rest will contract while those that were contracting do what? | Go into relaxation
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| The alternating of muscles contracting and relaxing allows us to do what for long periods of time without tiring? | Maintain body posture
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| What do nerve impulses do to assist in maintaining our body's posture for long periods of time? | Alternate between various groups of muscle cells thus allowing all muscles to have periods of rest
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| The 2 types of muscle contractions are? | 1. Isotonic
2. Isometric
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| What type of muscle contractions occur when muscles become shorter and thicker and the tone(tension)remains the same? | Isotonic
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| What type of muscle contractions occur when the muscles involved remain at a constant length and the tone(tension)against the muscle icreases? | Isometric
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| What is the name for the more fixed attachment of a muscle that serves as a basis for the action is? | Origin(Base)
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| The moveable attachment where the effects of muscular contraction are seen is known as? | Insertion
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| What is the name for muscles that move a limb toward the midline of the body? | Adductor muscles
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| How do Abductor muscles move limbs? | Move limbs away from midline of the body
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| What is the specific action of Flexor muscles? | Bend a limb at a joint(ex:Biceps)
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| What is the function of Extensor muscles? | Extend a limb at a joint(ex:Triceps)
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| Identify 2 muscles which are named according to their shape? | 1. Quadratus(square)
2. Trapezius(triangle)
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| What is an example of a muscle that is named according to their origin and insertion? | Sternocleidomastoid
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| Sternocleidomastoid muscles are primarily used to? | Move the head
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| Three muscles that can be named according to their location are? | 1. Frontalis
2. Tibialis
3. Radialis
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| What do the frontalis muscles do? | Raise the Eyebrows
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| Name 3 muscles that can be named according to their number of divisions? | 1. Biceps brachii
2. Triceps brachii
3. Quadriceps
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| Muscles can be named according to the direction their fibers run such as? | 1. Transverse
2. Oblique(slanted)
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| Muscles that rotate a limb are called? | Rotators(pitchers)
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| Movement of the foot upward is known as? | Dorsiflexion
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| Movement of the foot toward the ground is called? | Plantar flexion
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| Turning a palm so that it faces the ground is called? | Pronation
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| What 2 muscles cause a palm to face downward? | 1. Pronator teres
2. Pronator quadratus
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| Turning a palm upwards is known as? | Supination
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| Identify the muscle that causes a palm to face upward? | Supinator muscle(waitress)
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| The muscle that draws the scalp backwards is? | Occipitalis
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| What are the muscles involved in smiling and laughing called? | Zygomaticus
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| The 2 muscles that close the jaw(mandible) are? | 1. Masseter
2. Temporalis
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| The 4 muscles that move a scapula include? | 1. Levator scapulae(shrug)
2. Rhomboids
3. Pectoralis minor
4. Trapezius
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| The muscle that flexes and adducts an arm is called? | Pectoralis major
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| The muscle that extends, adducts, and rotates an arm medially(ex:swimming) is known as? | Latissimus dorsi
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| The name for the muscle that abducts an arm and is a site for intramucular injections(IM)is? | Deltoid
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| The muscle that flexes a wrist is called? | Flexor carpi
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| The muscle that extends a wrist is? | Extensor carpi
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| The muscles that flex the fingers or toes are called? | Flexor digitora
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| The muscles that extend the fingers or toes are known as? | Extensor digitora
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| The muscle that flexes a thumb is? | Flexor pollicis(text messaging)
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| What is the muscle that extends a thumb? | Extensor pollicis(hitch hike)
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| The adductor pollicis does what? | Moves a thumb toward the midline
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| The name of the muscle that moves a thumb away from the midline is? | Abductor pollicis
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| The muscle that flexes and opposes a thumb and is used when we write is? | Opponens pollicis(opposition)
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| Name the 4 muscles that make up the abdominal wall? | 1. External oblique
2. Internal oblique
3. Transverse abdominis
4. Rectus abdominis("washboard")
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| The 3 muscles of ventilation are? | 1. Diaphragm
2. Internal intercostals
3. External intercostals
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| The muscles of the buttocks include? | 1. Gluteus maximus(cheek)
2. Gluteus minimus
3. Gluteus medius(IM injections)
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| Name the 6 muscles used to flex a knee? | 1. Biceps femoris
2. Semitendinosus
3. Semimembranosus
4. Popliteus
5. Gracilis
6. Sartorius
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| What 3 muscles make up the "hamstrings"? | 1. Biceps femoris
2. Semitendinosus
3. Semimembranosus
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| The 4 muscles that extend a knee are? | 1. Rectus femoris
2. Vastus lateralis(IM injections)
3. Vastus medialis
4. Vastus intermedius
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| What are the 4 muscles that make up the quadriceps femoris group? | 1. Rectus femoris
2. Vastus lateralis
3. Vastus medialis
4. Vastus intermedius
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| What 5 muscles are used to plantar flex a foot(bring it downward)? | 1. Gastrocnemius(calf)
2. Tibialis posterior
3. Soleus
4. Peroneus longus
5. Plantaris
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| Identify the 2 muscles which dorsiflex a foot(bring it upward)? | 1. Tibialis anterior
2. Peroneus tertius
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| How many skeletal muscles do humans have? | 650
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| How much weight could the skeletal muscles lift if they all worked together? | 11 tons
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| Name the 3 intramuscular(IM)injection sites? | 1. Deltoid
2. Gluteus medius
3. Vastus lateralis
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