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
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
