chapter 16 sensory motor & integrative systems

Question 1

Sensation

Answer 1

conscious or subconscious awareness of changes in the external or internal environment

Question 2

when sensory impulses reach what part of the brain do we become consciously aware of them

Answer 2

When sensory impulses reach the cerebral cortex, we become consciously aware of the sensory stimuli and can precisely locate and identify specific sensations such as touch, pain, hearing, or taste

Question 3

What is Perception, & what is it primarily a function of?

Answer 3

perception is the conscious interpretation of sensations and is primarily a function of the cerebral cortex. We have no perception of some sensory information because it never reaches the cerebral cortex.

Question 4

certain sensory receptors constantly monitor the pressure of blood in blood vessels.

Because the nerve impulses conveying blood pressure information propagate to the car- diovascular center in the medulla oblongata rather than to the cere- bral cortex, blood pressure is?

Answer 4

not consciously perceived

Question 5

sensory modality

Answer 5

Each unique type of sensation—such as touch, pain, vision, or hear- ing—is called a sensory modality

A given sensory neuron carries information for only one sensory modality

Question 6

sensory modalities two classes?

Answer 6

The different sensory modalities can be grouped into two classes:

general senses and special senses.

Question 7

General senses include?

Answer 7

The general senses refer to both somatic senses and visceral senses.

Question 8

Somatic senses

Answer 8

Somatic senses include
tactile sensations (touch, pressure, vibration, itch, and tickle), thermal sensations (warm and cold), pain sensations, and proprioceptive sensations. Proprioceptive sensations allow perception of both the static (nonmoving) positions of limbs and body parts (joint and muscle position sense) and movements of the limbs and head.

Question 9

Visceral senses

Answer 9

Visceral senses provide information about conditions within internal organs, for example, pressure, stretch, chemicals, nausea, hunger, and temperature.

Question 10

The special senses

Answer 10

The special senses include the sensory modalities of smell, taste, vision, hearing, and equilibrium or balance.

Question 11

Cold stimulus neuron

Answer 11

Detects when cold is present
Free nerve ending, no coverings on it

Question 12

Pressure stimulus

Answer 12

Detects pressure
Encapsulated nerve endings, like a bulb flattens when it has pressure, to send signal