Sensory Perception

Question 0

What occurs when the neural impulses arrive at the cerebral cortex?

Answer 0

Sensation

Question 1

What do senses do?

Answer 1

Senses transmit sensory information in the form of electrochemical impulses to the brain.

Question 2

What are the types of receptors?

Answer 2

• Photoreceptors
• Chemoreceptors
• Mechanoreceptors
• Thermoreceptors

Question 3

What kind of receptors does the tongue contain?

Answer 3

Chemoreceptors

Question 4

What are the five basic tastes?

Answer 4

Sweet, salty, sour, bitter and umami.

Question 5

What does saliva do?

Answer 5

Saliva dissolves some of our food which has certain molecules detected by our taste buds.

Question 6

What glands stimulate the brain stem whenever we taste, smell or think of goodies?

Answer 6

The salivary glands.

Question 7

How do we perceive flavours?

Answer 7

We perceive flavours from the combination of taste information sent from our tongues and our sensory nerouns in our nose.

Question 8

What percentage of what we think is taste is actually due to smell?

Answer 8

80 - 90 %

Question 9

What substances are released in animals and humans which aid in the recognition and attraction of a mate?

Answer 9

They release substances called pheromones.

Question 10

Pheromones are detected in the nose by a structure called…

Answer 10

The vomeronasal organ.

Question 11

The skin contains more than four million sensory receptors which aren’t distributed evenly, many are concentrated in what areas?

Answer 11

The genitals, fingers, tongue and lips.

Question 12

Receptors are what gather information and transmit it through sensory neurons to where?

Answer 12

The brain and spinal cord for processing and a possible reaction.

Question 13

What is triggered when specialized sensors or nerve endings in the skin are activated by mechanical pressure or chemical signals?

Answer 13

Pain

Question 14

What are nociceptors?

Answer 14

Nociceptors are nerve cells that release chemicals that trigger pain receptors to send impulses to the brain.

Question 15

Light touch, pressure, pain, high and low temperature are examples of what?

Answer 15

Different stimuli.

Question 16

Greatest concentrations of touch receptors are in the…

Answer 16

Genitals, fingers, tongue and lips.

Question 17

Senses relay information to the nervous system that allows the body to maintain..

Answer 17

Homeostasis.

Question 18

Mechanoreceptors for hearing and balance are in the…

Answer 18

Inner ear

Question 19

The chochlea, semicircular canals, utricle, and saccule oil all contain ______________ that react to movement.

Answer 19

Hair Cells

Question 20

Where a proprioceptors located?

Answer 20

In the muscles, joints and tendons.

Question 21

What receptors inform the brain of about the positions of body parts?

Answer 21

Proprioceptors and Mechanoreceptors.

Question 22

Sensory receptors in the tongue are called?

Answer 22

Taste buds

Question 23

Sensory receptors in the nose are called?

Answer 23

Olfactory cells

Question 24

Sensory receptors in the skin are called?

Answer 24

Temperature, pressure and pain receptors.

Question 25

All sensory receptors provide additional information to...

Answer 25

The brain

Question 26

Definition: A sensory receptor that transmits information about the solute concentration in a solution or about individual kinds of molecules in a solution. What's this a definition of?

Answer 26

Chemoreceptors

Question 27

Definition: A sensory receptor that detects physical deformations in the body's environment associated with pressure, touch, stretch, motion and sound. What's this definition of?

Answer 27

Mechanoreceptors

Question 28

Definition: Sensory receptors that respond to light stimuli, allowing people to see images as well as colours. What is this definition of?

Answer 28

Photoreceptors

Question 29

What is a Thermoreceptor?

Answer 29

A sensory receptor that detects heat or cold.

Question 30

What neuron is located in the olfactory epithelium that is specialized to receive chemical stimuli and to initiate a nerve impulse?

Answer 30

Olfactory (Receptor) Cell

Question 31

Perception is the interpretation of sensory information by the....

Answer 31

Cerebral Cortex

Question 32

What is a sensation?

Answer 32

A sensation is the reception and processing by the brain of a nerve impulse sent by an activated sensory receptor.

Question 33

Specialized mechanisms or functions by which an organism is receptive and responsive to a certain class of stimuli is called...

Answer 33

Senses

Question 34

The tendency of sensory neurons to become less sensitive when they are repeatedly stimulated is called...

Answer 34

Sensory adaption

Question 35

The receiving of stimuli involving touch, pressure, vibration and stretch is called...

Answer 35

Tactile Reception

Question 36

A taste bud is a sensory organ composed of what?

Answer 36

* taste pores * taste cells * sensory fibres

Question 37

What is homeostasis?

Answer 37

Homeostasis is the tendency of the body to maintain a relatively consistent internal environment.

Question 38

What are the photoreceptor(s)?

Answer 38

• Vision

Question 39

What are the chemoreceptor(s)?

Answer 39

* Taste * Smell * Internal Senses

Question 40

What are the mechanoreceptor(s)?

Answer 40

* Touch, pressure, pain * Hearing * Balance * Body Position

Question 41

What are the Thermoreceptor(s)?

Answer 41

• Temperature