The larger the receptive field, the

(a) Larger the stimulus needed to stimulate a sensory receptor

(b) Fewer sensory receptors there are

(c) Harder it is to locate the exact point of stimulation

(d) Larger the area of the somatosensory cortex in the brain that deals with the area

(e) Closer together the receptor cells

_______ receptors are normally inactive, but become active for a short time whenever there is a change in the modality that they monitor.

The anterior roots of each spinal segment

(a) Bring sensory information into the spinal cord

(b) Control peripheral effectors

(c) Contain the axons of somatic motor and visceral motor neurons

(d) Do both b and c

The CNS interprets information entirely on the basis of the

(a) Number of action potentials that it receives

(b) Kind of action potentials that it receives

(c) Line over which sensory information arrives

(d) Intensity of the sensory stimulus

(e) Number of sensory receptors that are stimulated

Spinal nerves are called mixed nerves because they

(a) Contain sensory and motor fibers

(b) Exit at intervertebral foramina

(c) Are associated with a pair of spinal ganglia

(d) Are associated with posterior and anterior roots

A sensory region monitored by the posterior rami of a single spinal segment is

(a) A ganglion

(b) A fascicle

(c) A dermatome

(d) A ramus

What are the three major somatic sensory pathways and their functions?

The major nerve of the cervical plexus that innervates the diaphragm is the

(a) Median nerve

(b) Axillary nerve

(c) Phrenic nerve

(d) Common fibular nerve

The genitofemoral, femoral, and lateral femoral cutaneous nerves are major nerves of the

(a) Lumbar plexus

(b) Sacral plexus

(c) Brachial plexus

(d) Cervical plexus

What are the major components of the peripheral nervous system?

Which two types of neuroglia insulate neuron cell bodies and axons in the PNS from their surroundings?

Receptors in the saccule and utricle provide sensations of

(a) Angular acceleration

(b) Hearing

(c) Vibration

(d) Gravity and linear acceleration and deceleration

What three steps are necessary for transduction to occur?

Differentiate between a tonic receptor and a phasic receptor.

What are the four types of papillae on the human tongue?

List the names of the 12 pairs of cranial nerves. (Hint: use the mnemonic device 'Oh, Once One Takes The Anatomy Final, Very Good Vacations Are Heavenly.' )

Damage to the posterior spinocerebellar tract on the left side of the spinal cord at the L₁ level would interfere with the coordinated movement of which limb(s)?

Why do cervical nerves outnumber cervical vertebrae?

Explain the phenomenon of referred pain in terms of labeled lines and organization of sensory tracts and pathways.

Ascending tracts

(a) Carry sensory information to the brain,

(b) Carry motor information to the brain

(c) Carry sensory information from the brain

(d) Carry motor information from the brain

(e) Connect perceptive areas with the brain

Mary complains that when she wakes up in the morning, her thumb and forefinger are always “asleep.” She mentions this condition to her physician, who asks Mary whether she sleeps with her wrists flexed. She replies that she does. The physician tells Mary that sleeping in that position may compress a portion of one of her peripheral nerves, producing her symptoms. Which nerve is involved?