McGraw Hill A&P Exam 4 Study Guide 2026 | Complete Review, Practice Questions
& Test Prep
Neurons that have one dendrite and one axon extending from the cell body are called
__________ neurons. - ✔✔bipolar
Pertaining to the nervous system, what is an effector? - ✔✔A muscle or gland that receives a
nerve impulse from a motor neuron
A nerve is the same structure as a neuron. - ✔✔False
Which of the following is true of interneurons? - ✔✔They often connect sensory neurons to
motor neurons.
A peripheral process is a structure found only in __________ neurons. - ✔✔unipolar
Which type of neuroglia forms the myelin sheath around some axons of the PNS (peripheral
nervous system)? - ✔✔Schwann cells
Which of the following nerves is part of the cervical plexus? - ✔✔Phrenic nerve
The numbers of spinal nerve pairs in the cervical, thoracic, lumbar, sacral and coccygeal regions
are __________ respectively. - ✔✔8, 12, 5, 5, and 1
The anterior ramus of each spinal nerve sends out communicating rami that connect to - ✔✔a
sympathetic trunk ganglion.
,Spinal nerves are called mixed nerves because they contain both sensory and motor nerve
fibers. - ✔✔True
Which of the following is NOT true of the epidural space? - ✔✔It contains cerebrospinal fluid.
All of the following are major spinal nerve plexuses except the __________ plexus. -
✔✔thoracic
Which of the following is NOT true of the Babinski reflex? - ✔✔It is an abnormal response that
occurs in some adults in the calcaneal reflex.
The anterior roots of spinal nerves house axons of - ✔✔motor neurons.
Which of the following is NOT true of the Babinski reflex? - ✔✔It is an abnormal response that
occurs in some adults in the calcaneal reflex.
Which of the following nerves innervates the effectors of the patellar reflex? - ✔✔Femoral
nerve
Which of the following is NOT true of stretch and withdrawal reflexes? - ✔✔They are
voluntary.
Which of the following represents the correct order of components in a reflex arc? -
✔✔Receptor, sensory neuron, integration center, motor neuron, effector
What is Broca's area of the brain? - ✔✔A motor area for the planning of speech
Which portion of the brainstem is responsible for the visual and auditory reflexes? -
✔✔Corpora quadrigemina
,Which of the following is NOT true of the ventricles of the brain? - ✔✔They are blood-filled
chambers.
What do the olfactory, optic, and vestibulocochlear nerves have in common? - ✔✔They are all
sensory nerves
Which of the cranial nerves has many diverse functions, such as controlling muscles of speech
and swallowing, and providing sensation in the pharynx, esophagus, and thoracic and
abdominal viscera? - ✔✔Vagus nerve
The cranial nerves are basically numbered from superior to inferior. - ✔✔False
Which layer of the meninges is thick and opaque? - ✔✔Dura mater
Which ventricles are separated by the septum pellucidum? - ✔✔The 2 lateral ventricles
In a median section of a sheep brain, the thalamus lies __________ the midbrain. -
✔✔anterior
Which ventricles are separated by the septum pellucidum? - ✔✔The 2 lateral ventricles
Which portion of the brainstem continues directly into the spinal cord? - ✔✔Medulla
oblongata
When looking at a ventral view of the sheep brain, which of the cranial nerves can be seen
emerging from the floor of the midbrain? - ✔✔Oculomotor nerves
, Tactile and lamellated corpuscles are types of - ✔✔mechanoreceptors.
All sensory neurons have receptive fields of approximately the same size. - ✔✔False
A special sense is one that has - ✔✔receptors that are confined to the head.
The form in which receptors send sensory information to the brain is called perception. -
✔✔False
In this experiment, which part of the body showed the smallest 2-point threshold? -
✔✔Fingertip
The supporting cells for olfactory receptor cells are - ✔✔pseudostratified columnar epithelial
cells.
The smell and taste of foods are influenced by all of the following except - ✔✔all of these
influence the smell and taste of foods.
The vagus nerve transmits gustatory nerve impulses from the entire tongue to the brain. -
✔✔False, unselectedbutton,Incorrect unavailable
In the absence of olfaction, the sense of gustation is diminished. - ✔✔True
Alkaloids produce the __________ taste sensation. - ✔✔bitter
The conjunctiva is a mucous membrane that covers the entire anterior surface of the eyeball,
including the cornea. - ✔✔True
& Test Prep
Neurons that have one dendrite and one axon extending from the cell body are called
__________ neurons. - ✔✔bipolar
Pertaining to the nervous system, what is an effector? - ✔✔A muscle or gland that receives a
nerve impulse from a motor neuron
A nerve is the same structure as a neuron. - ✔✔False
Which of the following is true of interneurons? - ✔✔They often connect sensory neurons to
motor neurons.
A peripheral process is a structure found only in __________ neurons. - ✔✔unipolar
Which type of neuroglia forms the myelin sheath around some axons of the PNS (peripheral
nervous system)? - ✔✔Schwann cells
Which of the following nerves is part of the cervical plexus? - ✔✔Phrenic nerve
The numbers of spinal nerve pairs in the cervical, thoracic, lumbar, sacral and coccygeal regions
are __________ respectively. - ✔✔8, 12, 5, 5, and 1
The anterior ramus of each spinal nerve sends out communicating rami that connect to - ✔✔a
sympathetic trunk ganglion.
,Spinal nerves are called mixed nerves because they contain both sensory and motor nerve
fibers. - ✔✔True
Which of the following is NOT true of the epidural space? - ✔✔It contains cerebrospinal fluid.
All of the following are major spinal nerve plexuses except the __________ plexus. -
✔✔thoracic
Which of the following is NOT true of the Babinski reflex? - ✔✔It is an abnormal response that
occurs in some adults in the calcaneal reflex.
The anterior roots of spinal nerves house axons of - ✔✔motor neurons.
Which of the following is NOT true of the Babinski reflex? - ✔✔It is an abnormal response that
occurs in some adults in the calcaneal reflex.
Which of the following nerves innervates the effectors of the patellar reflex? - ✔✔Femoral
nerve
Which of the following is NOT true of stretch and withdrawal reflexes? - ✔✔They are
voluntary.
Which of the following represents the correct order of components in a reflex arc? -
✔✔Receptor, sensory neuron, integration center, motor neuron, effector
What is Broca's area of the brain? - ✔✔A motor area for the planning of speech
Which portion of the brainstem is responsible for the visual and auditory reflexes? -
✔✔Corpora quadrigemina
,Which of the following is NOT true of the ventricles of the brain? - ✔✔They are blood-filled
chambers.
What do the olfactory, optic, and vestibulocochlear nerves have in common? - ✔✔They are all
sensory nerves
Which of the cranial nerves has many diverse functions, such as controlling muscles of speech
and swallowing, and providing sensation in the pharynx, esophagus, and thoracic and
abdominal viscera? - ✔✔Vagus nerve
The cranial nerves are basically numbered from superior to inferior. - ✔✔False
Which layer of the meninges is thick and opaque? - ✔✔Dura mater
Which ventricles are separated by the septum pellucidum? - ✔✔The 2 lateral ventricles
In a median section of a sheep brain, the thalamus lies __________ the midbrain. -
✔✔anterior
Which ventricles are separated by the septum pellucidum? - ✔✔The 2 lateral ventricles
Which portion of the brainstem continues directly into the spinal cord? - ✔✔Medulla
oblongata
When looking at a ventral view of the sheep brain, which of the cranial nerves can be seen
emerging from the floor of the midbrain? - ✔✔Oculomotor nerves
, Tactile and lamellated corpuscles are types of - ✔✔mechanoreceptors.
All sensory neurons have receptive fields of approximately the same size. - ✔✔False
A special sense is one that has - ✔✔receptors that are confined to the head.
The form in which receptors send sensory information to the brain is called perception. -
✔✔False
In this experiment, which part of the body showed the smallest 2-point threshold? -
✔✔Fingertip
The supporting cells for olfactory receptor cells are - ✔✔pseudostratified columnar epithelial
cells.
The smell and taste of foods are influenced by all of the following except - ✔✔all of these
influence the smell and taste of foods.
The vagus nerve transmits gustatory nerve impulses from the entire tongue to the brain. -
✔✔False, unselectedbutton,Incorrect unavailable
In the absence of olfaction, the sense of gustation is diminished. - ✔✔True
Alkaloids produce the __________ taste sensation. - ✔✔bitter
The conjunctiva is a mucous membrane that covers the entire anterior surface of the eyeball,
including the cornea. - ✔✔True
