BIOD 151
Module 5 BIOD 151 (Latest Update )
Essential Human Anatomy & Physiology I |
Questions & Answers | Grade A 100% Correct.
Portage Learning.
1. antagonist: muscles that perform paired and opposing
action
2. origin: site of attachment that is stationary during the movement;
where the muscle starts
3. insertion: site of attachment that is moved by the muscle
contraction
4. action: what effect is produced by the muscle's contraction ex:
triceps are the primary extensors of the forearm
5. innervation: the peripheral nerve that supplies a muscle
with the message from the brain
ex: innervation of the biceps brachii is the musculocutaneous nerve
,6. muscles of facial expression: 12 pairs of cranial nerves that
originate on the ventral surface of the brain, controlling muscles
and functions of several organs and glands
7. Orbicularis oculi
action: eye closure
innervation: CN 7:
8. orbicularis oris
action: mouth closure, closes lips, protudes lip forward,
presses lip against teeth innervation: CN 7:
,BIOD 151
9. zygomaticus
major/minor
action: pulls corner of
lips upwards
innervation: CN 7:
10. risorius
action: pulls corners
of mouth posteriorly
innervation: CN 7:
11. frontalis
action: raises eyebrows innervation: CN 7:
12. masseter
, action: jaw closure
innervation: CN 5,
mandibular branch:
13. buccinator
action: compresses check
innervation: CN 7:
14. temporalis
Module 5 BIOD 151 (Latest Update )
Essential Human Anatomy & Physiology I |
Questions & Answers | Grade A 100% Correct.
Portage Learning.
1. antagonist: muscles that perform paired and opposing
action
2. origin: site of attachment that is stationary during the movement;
where the muscle starts
3. insertion: site of attachment that is moved by the muscle
contraction
4. action: what effect is produced by the muscle's contraction ex:
triceps are the primary extensors of the forearm
5. innervation: the peripheral nerve that supplies a muscle
with the message from the brain
ex: innervation of the biceps brachii is the musculocutaneous nerve
,6. muscles of facial expression: 12 pairs of cranial nerves that
originate on the ventral surface of the brain, controlling muscles
and functions of several organs and glands
7. Orbicularis oculi
action: eye closure
innervation: CN 7:
8. orbicularis oris
action: mouth closure, closes lips, protudes lip forward,
presses lip against teeth innervation: CN 7:
,BIOD 151
9. zygomaticus
major/minor
action: pulls corner of
lips upwards
innervation: CN 7:
10. risorius
action: pulls corners
of mouth posteriorly
innervation: CN 7:
11. frontalis
action: raises eyebrows innervation: CN 7:
12. masseter
, action: jaw closure
innervation: CN 5,
mandibular branch:
13. buccinator
action: compresses check
innervation: CN 7:
14. temporalis
