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  • BIOS 252 Anatomy And Physiology II
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BIOS 252 Anatomy and Physiology II Exam 2 2026/2027 | Questions & Answers | Study Guide

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BIOS 252 Anatomy and Physiology II with Lab Exam 2 study guide covering important nervous system concepts, including spinal nerves and their divisions, dorsal and ventral roots, myotomes, dermatomes, endoneurium, perineurium, epineurium, cervical, brachial, lumbar and sacral plexuses, major peripheral nerves, reflex arcs, sensory and motor tracts, the autonomic nervous system, sympathetic and parasympathetic divisions, autonomic neurotransmitters and responses, autonomic dysreflexia, brain protection and meninges, cerebrospinal fluid, the brainstem, cerebellum, diencephalon, cerebral cortex, brain lobes, white and gray matter, and cranial nerves I–XII. Ideal for Chamberlain students reviewing BIOS 252 Anatomy and Physiology II material and preparing for Exam 2

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Exam 2: BIOS 252/ BIOS252 | Questions and correct
Answers (Latest 2026/ 2027 Update) Anatomy and
Physiology II with Lab Review | Grade A| 100 OUT OF 100
(Accurate) -Chamberlain

How many pairs of spinal nerves are there?
31 pairs




How many pairs of cervical nerves are there?

8 pairs




How many pairs of thoracic nerves are there?

12 pairs




How many pairs of lumbar nerves are there?
5 pairs




How many pairs of sacral nerves are there?

5 pairs




How many pairs of coccygeal nerves are there?
1 pair

, Exam 2: BIOS 252/ BIOS252 | Questions and correct
Answers (Latest 2026/ 2027 Update) Anatomy and
Physiology II with Lab Review | Grade A| 100 OUT OF 100
(Accurate) -Chamberlain
What are the 5 divisions of spinal nerves?
cervical, thoracic, lumbar, sacral, coccygeal




What type of neuron is the dorsal root?

Sensory (afferent)




What type of neuron is the ventral root?

Motor (efferent)




Do spinal nerves contain sensory or motor neurons?
Both




What are myotomes?

specific muscle groups innervated by specific levels of spinal nerves




What are dermatomes?

specific patches of skin innervated by specific levels of the spinal column




What is the endoneurium?

, Exam 2: BIOS 252/ BIOS252 | Questions and correct
Answers (Latest 2026/ 2027 Update) Anatomy and
Physiology II with Lab Review | Grade A| 100 OUT OF 100
(Accurate) -Chamberlain
connective tissue surrounding each individual axon




What is the perineurium?

connective tissue surrounding a bundle of axons making a nerve fascicle




What is the epineurium?

connective tissue surrounding the entire nerve




What areas does the cervical plexus serve?

head and neck




Where is the phrenic nerve located?

C3-C5




What does the phrenic nerve do?

innervates the diaphragm




What is the cervical plexus made of?
roots and nerves

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