A & P Chapter 15 – Flashcards

Which of these statements about the afferent division of the nervous system is true?

Which of these are NOT part of the afferent division of the nervous system?

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

Which of the following is not one of the special senses?

Which of the following best explains why the body "remembers" painful injuries long after they have been healed?

Central adaptation can be defined as __________

Gustatory receptors are sensitive to dissolved chemicals but insensitive to light. This is due to

In order for a sensation to become a perception,

Central adaptation refers to

A receptor potential may

Action potentials from receptors involved in general sensations are interpreted in the

A ________ potential is a depolarization of a sensory dendrite that can lead to an afferent nerve impulse if strong enough

Sensory neurons that adapt quickly are called ________ receptors.

Which of the following tactile receptors is found in the dermal papillae?

________ provides information about the intensity, duration, location, and modality of a sensory stimulus.

Which type of sensory receptor detects vibrations?

During anesthesia, a complete disruption in sensory perceptions is desired. Which of the following events is NOT associated with the sensory pathway?

Which of the following is the best illustration for Golgi tendon organ activation?

Which of these is NOT a property of fast pain?

Which of these is NOT a property of chemoreceptors?

Proprioceptors signal all BUT __________.

All of the following are true of a prickling pain sensations except that they

Receptors that monitor the position of joints belong to the category called

Mechanoreceptors that respond to changes in blood pressure are called

We are constantly bombarded by a variety of stimuli inside and outside of our bodies. Why are we not overwhelmed by sensory information?

________ are receptors in the aorta that monitor the blood pressure.

For the last few weeks, you have had an odd sensation on your upper thigh. When you touch the naked skin, it feels very strange, like you are touching your skin through layers of cloth. The surrounding area feels normal. Your doctor thinks that this may be related to spinal nerve damage related to a herniated disc. The doctor calls this change in sensation

Chemoreceptors are located in all of the following except

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

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

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.

Stimulation of a neuron that terminates in the superior region of the left postcentral gyrus would produce

The afferent neuron that carries the sensation to the CNS is a ________ neuron.

Feeling pain in the left arm during a heart attack is an example of ________ pain.

The sense of proprioception passes along the ________ pathway.

Ascending tracts in the spinal cord relay ________ information.

Which part of the nervous system distributes motor commands to skeletal muscles?

Which principle descending motor pathway provides conscious control over voluntary muscle movements?

Which principle descending motor pathway primarily controls muscle tone and balance?

Which parts of the somatic nervous system are responsible for coordinating and providing feedback on muscle contractions?

The cerebellum relies on information from

The cerebellum

The ________ tract provides subconscious regulation of upper limb muscle tone and movement and is part of the ________ pathway.

The basal nuclei

Complex motor activities such as riding a bicycle

A brain injury to a patient results in facial paralysis. Which descending tract is most likely affected?

Upper motor neurons are located in the

Which pathway crosses over in the medulla?

The ventralmost portion of someone's spinal cord experiences a lesion. Which sense is most likely to be directly affected?

Sensory encoding of the perceived location of a stimulus depends on

Sensory information from all parts of the body is routed to

The ________ is the area monitored by a single receptor cell.

The conversion of a sensory input to a change in membrane potential in the receptor is known as

The link between peripheral receptor and cortical neuron is called a(n)

Which of these is NOT a property of phasic receptors?

A reduction in sensitivity in the presence of a constant stimulus is referred to as

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

If a nerve impulse was transmitted to the central nervous system (CNS) on a C fiber, __________.

Endorphins can reduce perception of sensations initiated by

Which of the following kinds of information do fine-touch and light-pressure mechanoreceptors provide?

The spinal tract that relays information concerning pain and temperature to the CNS is the

Which neuron delivers sensations to the CNS?

The spinal tract that relays information concerning crude touch and pressure to the CNS is the

Which of the following is NOT a component of the spinocerebellar pathway?

We can localize sensations that originate in different areas of the body because

What is the minimum number of synapses that must be crossed before an afferent nerve impulse becomes a perception?

Which of these sensory pathways carries afferent impulses that DON'T produce perceptions?

The cerebellum adjusts motor activity in response to all of the following except

The spinal tract that normally plays a role in the subconscious regulation of the muscles of the arms is the ________ tract.

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

Axons that decussate between the pyramids of the medulla oblongata belong to the ________ tracts.

The pyramidal system provides

The upper motor neurons of the medial pathway are located within any of the following except the

Some neurons within the basal nuclei are known to

Descending (motor) pathways always involve at least ________ motor neuron(s).

The medial pathway that controls involuntary movements of head, neck, and arm position in response to sudden visual and auditory stimuli is the ________ tract.

The corticospinal system is often referred to as the

Descending tracts in the spinal cord relay ________ information.

Which of these is NOT a property of the somatic nervous system?

A very large, fast-adapting tactile receptor that is composed of a single dendrite enclosed by concentric layers of collagen is a

The pyramids on the ventral surface of the medulla oblongata are formed by fibers of the ________ tracts.

Which descending pathway is found in the anterior white column and carries impulses relating to equilibrium and balance?