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Biology 225 Lab > Final Practical (Lab 6 portion) > Flashcards

Final Practical (Lab 6 portion) Flashcards

0
Q

At the end of the axon are branches called ____ ____ that approach the muscle.

A

Axon terminals

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1
Q

The place where a nerve fiber (axon) and a muscle cell meet

A

Neuromuscular junction

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2
Q

A neuron and all the muscle fibers it stimulates

A

Motor unit

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3
Q

The neuron and muscle fiber membranes do not touch, but are separated by a small fluid-filled gap called the ____ ____.

A

Synaptic cleft

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4
Q

Mitochondria and vesicles in the axon terminals contains a neurotransmitter called ____.

A

Acetylcholine (ACh)

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5
Q

What is the antagonistic partner?

Sternocleidomastoid

A

Trapezius

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6
Q

What is the antagonistic partner?

Latissimus dorsi

A

Pectoralis major

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7
Q

What is the antagonistic partner?

Biceps brachii

A

Triceps brachii

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8
Q

What is the antagonistic partner?

Masseter and temporalis

A

Platysma

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9
Q

What is the antagonistic partner?

Hamstrings

A

Quadriceps

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10
Q

What is the antagonistic partner?

Fibularis longus

A

Anterior tibialis

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11
Q

What is the antagonistic partner?

Anterior tibialis

A

Gastrocnemius/soleus

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12
Q

What is the antagonistic partner?

Gluteus maximus

A

Iliopsoas group

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13
Q

Abducts and medially rotates thigh; steadies pelvis

A

Gluteus minimus

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14
Q

Synergist of latissimus dorsi–extends, medially rotates and adducts humerus

A

Teres major

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15
Q

Frontal belly raises eyebrows, occipital belly fixes the galea and pulls the scalp posteriorly

A

Epicranius

16
Q

Elevates hyoid, opens mouth, depresses mandible

17
Q

Elevate hyoid and base of tongue during swallowing; retract hyoid

A

Superior hyoids

18
Q

Closes eyes, blinking, squinting, draws eyebrows inferiorly

A

Orbicularis oculi

19
Q

Flex hand and fingers

A

Anterior forearm muscles

20
Q

Depress hyoid

A

Inferior hyoids

21
Q

Closes mouth, purses and protrudes lips

A

Orbicularis oris

22
Q

Extend hand and fingers

A

Posterior forearm muscles

23
Q

Origin = manubrium of sternum and clavicle

Insertion = mastoid process of temporal

A

Sternocleidomastoid

24
Q

Origin = pubis and pubic symphysis

Insertion = xiphoid process and costal cartilages of ribs 5-7

A

Rectus abdominis

25
Q

Origin = inferior margin of glenoid cavity and humerus

Insertion = olecranon process of ulna

A

Triceps brachii

26
Q

Origin = short head - coracoid process of scapula; long head - through intertubercular groove and within shoulder capsule

Insertion = radial tuberosity

A

Biceps brachii

Biology 225 Lab (7 decks)

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