Question 1

Motor neurons whose cell bodies are within the spinal cord are called ________ neurons.

Accepted Answer

A) upper motor 
B) lower motor 
C) preganglionic 
D) postganglionic 
E) somesthetic 
A) upper motor 
B) lower motor 
C) preganglionic 
D) postganglionic 
E) somesthetic

Question 2

Upper motor neurons of the corticospinal tract synapse with neurons in

Accepted Answer

A) autonomic ganglia. 
B) the anterior gray horns of the spinal cord. 
C) the spinothalamic tract. 
D) the lateral gray horns of the spinal cord. 
E) the dorsal root ganglia. 
A) autonomic ganglia. 
B) the anterior gray horns of the spinal cord. 
C) the spinothalamic tract. 
D) the lateral gray horns of the spinal cord. 
E) the dorsal root ganglia.

Question 3

A fast-adapting tactile receptor that monitors movements across the body surface is a

Accepted Answer

A) tactile (Merkel)disc. 
B) lamellated corpuscle. 
C) tactile (Meissner)corpuscle. 
D) Ruffini corpuscle. 
E) root hair plexus. 
A) tactile (Merkel)disc. 
B) lamellated corpuscle. 
C) tactile (Meissner)corpuscle. 
D) Ruffini corpuscle. 
E) root hair plexus.

Question 4

A sensory receptor characterized peripherally as a free nerve ending which centrally uses glutamate and/or substance P as neurotransmitters would most likely be a

Accepted Answer

A) chemoreceptor. 
B) mechanoreceptor. 
C) thermoreceptor. 
D) nociceptor. 
E) free receptor. 
A) chemoreceptor. 
B) mechanoreceptor. 
C) thermoreceptor. 
D) nociceptor. 
E) free receptor.

Question 5

The cerebellum relies on information from

Accepted Answer

A) the eyes. 
B) the inner ear as movements are underway. 
C) proprioceptive sensations. 
D) motor commands from upper motor neurons. 
E) All of the answers are correct. 
A) the eyes. 
B) the inner ear as movements are underway. 
C) proprioceptive sensations. 
D) motor commands from upper motor neurons. 
E) All of the answers are correct.

Question 6

A tactile receptor composed of highly coiled dendrites that are surrounded by modified Schwann cells and a fibrous capsule is a

Accepted Answer

A) lamellated corpuscle. 
B) Ruffini corpuscle. 
C) tactile (Meissner)corpuscle. 
D) tactile (Merkel)disc. 
E) root hair plexus. 
A) lamellated corpuscle. 
B) Ruffini corpuscle. 
C) tactile (Meissner)corpuscle. 
D) tactile (Merkel)disc. 
E) root hair plexus.

Question 7

The descending spinal tract that crosses to the opposite side of the body within the medulla oblongata is the ________ tract.

Accepted Answer

A) lateral corticospinal 
B) anterior corticospinal 
C) rubrospinal 
D) reticulospinal 
E) vestibulospinal 
A) lateral corticospinal 
B) anterior corticospinal 
C) rubrospinal 
D) reticulospinal 
E) vestibulospinal

Question 8

The ________ tract provides subconscious regulation of balance and muscle tone and is part of the ________ pathway.

Accepted Answer

A) tectospinal; lateral 
B) rubrospinal; lateral 
C) reticulospinal; medial 
D) vestibulospinal; medial 
E) corticobulbar; medial 
A) tectospinal; lateral 
B) rubrospinal; lateral 
C) reticulospinal; medial 
D) vestibulospinal; medial 
E) corticobulbar; medial

Question 9

The spinal tract that carries sensations from proprioceptors to the CNS is the

Accepted Answer

A) fasciculus gracilis. 
B) fasciculus cuneatus. 
C) spinocerebellar. 
D) lateral spinothalamic. 
E) anterior spinothalamic. 
A) fasciculus gracilis. 
B) fasciculus cuneatus. 
C) spinocerebellar. 
D) lateral spinothalamic. 
E) anterior spinothalamic.

Question 10

If a friend is talking about someone she knows who lost his special senses,you would correct her when you hear her mention ________ because it is not a special sense.

Accepted Answer

A) smell 
B) sight 
C) balance 
D) cold 
E) hearing 
A) smell 
B) sight 
C) balance 
D) cold 
E) hearing

Question 11

Sensory neurons that are always active are called ________ receptors.

Accepted Answer

A) tonic 
B) pasich 
C) noci 
D) isometric 
E) isotonic 
A) tonic 
B) pasich 
C) noci 
D) isometric 
E) isotonic

Question 12

Figure 15-2 The Corticospinal Pathway
Use Figure 15-2 to answer the following questions:
-The axon labeled "2" synapses with which structure?

Accepted Answer

A) 1 
B) 3 
C) 4 
D) 5 
E) 6 
A) 1 
B) 3 
C) 4 
D) 5 
E) 6

Question 13

Why is it that one cannot identify the location of internal organs,although joints and bone location can be identified?

Accepted Answer

A) The internal organs have no proprioceptors like joints,bones,and muscles. 
B) Internal organs have no pain receptors. 
C) Although internal organs have some receptors,the information is not interpreted by the brain. 
D) Internal organs have no receptors of any kind. 
E) Sensory information from internal organs is processed by a different part of the brain than the joints,bones,and muscles. 
A) The internal organs have no proprioceptors like joints,bones,and muscles. 
B) Internal organs have no pain receptors. 
C) Although internal organs have some receptors,the information is not interpreted by the brain. 
D) Internal organs have no receptors of any kind. 
E) Sensory information from internal organs is processed by a different part of the brain than the joints,bones,and muscles.

Question 14

Your uncle was just diagnosed with a heart attack.One of his major symptoms is left arm pain.You are not surprised because you are familiar with the phenomenon of ________ pain.

Accepted Answer

A) referred 
B) phantom 
C) psychogenic 
D) somatic 
E) neurogenic 
A) referred 
B) phantom 
C) psychogenic 
D) somatic 
E) neurogenic

Question 15

Some neurons within the basal nuclei are known to

Accepted Answer

A) stimulate neurons with GABA. 
B) inhibit neurons with GABA. 
C) stimulate neurons with acetylcholine. 
D) stimulate neurons with GABA and stimulate neurons with acetylcholine. 
E) inhibit neurons with GABA and stimulate neurons with acetylcholine. 
A) stimulate neurons with GABA. 
B) inhibit neurons with GABA. 
C) stimulate neurons with acetylcholine. 
D) stimulate neurons with GABA and stimulate neurons with acetylcholine. 
E) inhibit neurons with GABA and stimulate neurons with acetylcholine.

Question 16

A mechanoreceptor in the papillary layer of the dermis that responds to fine touch is a

Accepted Answer

A) tactile (Merkel)disc. 
B) root hair plexus. 
C) free nerve ending. 
D) Ruffini corpuscle. 
E) tactile (Meissner)corpuscle. 
A) tactile (Merkel)disc. 
B) root hair plexus. 
C) free nerve ending. 
D) Ruffini corpuscle. 
E) tactile (Meissner)corpuscle.

Question 17

The ________ nervous system carries impulses to skeletal muscles.

Accepted Answer

A) somatic 
B) sympathetic 
C) parasympathetic 
D) afferent 
E) primitive 
A) somatic 
B) sympathetic 
C) parasympathetic 
D) afferent 
E) primitive

Question 18

The term general senses refers to sensitivity to all of the following,except

Accepted Answer

A) temperature. 
B) taste. 
C) touch. 
D) vibration. 
E) pain. 
A) temperature. 
B) taste. 
C) touch. 
D) vibration. 
E) pain.

Question 19

Figure 15-1 Spinothalamic Tracts
Use Figure 15-1 to answer the following questions:
-Identify the structure labeled "5."

Accepted Answer

A) thalamus 
B) cerebral cortex 
C) primary motor cortex 
D) primary sensory cortex 
E) autonomic ganglion 
A) thalamus 
B) cerebral cortex 
C) primary motor cortex 
D) primary sensory cortex 
E) autonomic ganglion

Question 20

Upper motor neurons are located in the

Accepted Answer

A) precentral gyrus. 
B) postcentral gyrus. 
C) brain stem. 
D) spinal cord. 
E) cerebral hemispheres and the brain stem. 
A) precentral gyrus. 
B) postcentral gyrus. 
C) brain stem. 
D) spinal cord. 
E) cerebral hemispheres and the brain stem.

Exam 15: Sensory Pathways and the Somatic Nervous System

Motor neurons whose cell bodies are within the spinal cord are called ________ neurons.

Upper motor neurons of the corticospinal tract synapse with neurons in

A fast-adapting tactile receptor that monitors movements across the body surface is a

A sensory receptor characterized peripherally as a free nerve ending which centrally uses glutamate and/or substance P as neurotransmitters would most likely be a

The cerebellum relies on information from

A tactile receptor composed of highly coiled dendrites that are surrounded by modified Schwann cells and a fibrous capsule is a

The descending spinal tract that crosses to the opposite side of the body within the medulla oblongata is the ________ tract.

The ________ tract provides subconscious regulation of balance and muscle tone and is part of the ________ pathway.

The spinal tract that carries sensations from proprioceptors to the CNS is the

If a friend is talking about someone she knows who lost his special senses,you would correct her when you hear her mention ________ because it is not a special sense.

Sensory neurons that are always active are called ________ receptors.

Figure 15-2 The Corticospinal Pathway Use Figure 15-2 to answer the following questions: -The axon labeled "2" synapses with which structure?

Why is it that one cannot identify the location of internal organs,although joints and bone location can be identified?

Your uncle was just diagnosed with a heart attack.One of his major symptoms is left arm pain.You are not surprised because you are familiar with the phenomenon of ________ pain.

Some neurons within the basal nuclei are known to

A mechanoreceptor in the papillary layer of the dermis that responds to fine touch is a

The ________ nervous system carries impulses to skeletal muscles.

The term general senses refers to sensitivity to all of the following,except

Figure 15-1 Spinothalamic Tracts Use Figure 15-1 to answer the following questions: -Identify the structure labeled "5."

Upper motor neurons are located in the

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters

The tract provides subconscious regulation of balance and muscle tone and is part of the pathway.