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BIOS252 EXAM 2, 2024/2025 STUDY SET WITH CORRECT ANSWERS
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BIOS252 EXAM 2, 2024/2025 STUDY SET WITH CORRECT ANSWERS
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BIOS252 EXAM 2, 2024/2025 STUDYSET WITH CORRECT ANSWERS
How many pairs of spinal nerves are there? - CORRECT ANSWERS-
31 pairs
how many cervical nerves are there? - CORRECT ANSWERS- 8
pairs
how many thoracic nerves are there? - CORRECT ANSWERS- 12
pairs
how many pairs of lumbar nerves are there? - CORRECT
ANSWERS- 5 pairs
how many pairs of sacral nerves are there? - CORRECT ANSWERS-
5 pairs
how many pairs of coccygeal nerves are there? - CORRECT
ANSWERS- 1 pair
,What is the dorsal root? - CORRECT ANSWERS- axons of sensory
neurons
what is the ventral root? - CORRECT ANSWERS- axons of motor
neurons ( efferent)
Do spinal nerves contain both sensory and motor neurons? -
CORRECT ANSWERS- yes
What is a myotome? - CORRECT ANSWERS- specific muscle
groups innervated by specific levels of spinal nerves
what is a dermatome? - CORRECT ANSWERS- specific patches of
skin innervated by specific levels of the spinal column
what is a endoneurium? - CORRECT ANSWERS- connective tissue
surrounding each individual axon
What is the perineurium? - CORRECT ANSWERS- connective
tissue that surrounds a bundle of axons making a nerve fascicle
What is the epineurium? - CORRECT ANSWERS- surrounds the
entire nerve
What is the cervical plexus? - CORRECT ANSWERS- C1-C5
, what is notable nerves? - CORRECT ANSWERS- Phrenic Nerve
(C3-C5)
brachial plexus - CORRECT ANSWERS- C5-T1, nerves to upper
limb, neck, and shoulder muscles
lumbar plexus - CORRECT ANSWERS- L1-L4, nerves to abdominal
wall, genitals, and lower limb
sacral and coccygeal plexus - CORRECT ANSWERS- l5-s1, nerves
to the buttock, perineum, and lower limb notable nerves; sciatic
nerve, tibial and common fibular
what is a reflex? - CORRECT ANSWERS- fast, involuntary and
predictable sequence of events that function as an arc
what are the 5 steps to a reflex? - CORRECT ANSWERS- Sensory
receptor, sensory neuron, interneuron, motor neuron, effector
Ipsilateral - CORRECT ANSWERS- same side
contralateral - CORRECT ANSWERS- opposite side
monosynaptic - CORRECT ANSWERS- one synapse
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