Neurons and sensory systems part2

Question 1

The autonomic nervous system has sympathic, parasympathetic, and a distinct network of neurons called the

Answer 1

Enteric nervous system

Question 2

What is the function of the enteric system?

Answer 2

Controls activity of the digestive tract, pancreas, and gallbladder

Question 3

What is the function of the sympathic division?

Answer 3

Regulates “fight-or-flight” response

Question 4

What is the function of the parasympathetic divion?

Answer 4

Generates opposite responses in target organs and promotes calming and a return to “rest-and-digest” functions

Question 5

The forebrain has the Telencephalon and Diencephalon. What are the brain structures?

Answer 5

Telencephalon consists of the cerebrum(cerebral cortex and basal nuclei)

The Diencephalon is made up of the thalmus, hypothalamus, and epithalamus

Question 6

The mid brain has the mesencephalon. What is this composed of?

Answer 6

Mesencephalon is the midbrain. The midbrain is a part of the brainstem

Question 7

The Hindbrain consists of the metencephalon and myelencephalon. What do they consist of ?

Answer 7

Metencephalon-pons (part of the brainstem), and cerebellum

The Myelencephalon’ the medulla oblongata (part of the brainstem)

Question 8

What is the brain stem composed of?

Answer 8

Midbrain, Pons, and medulla oblongata

Question 9

TRUE OR FALSE
The response of a sensory receptor varies with intensity of stimuli

Answer 9

TRUE

Question 10

If a sensory receptor is a sensory neuron, a larger receptor potential results in more frequent action potentials
True or false

Answer 10

True

Question 11

If the sensory receptor is not a sensory neuron, a larger receptor potential causes more neutranmitters to be released TRUE OR FALSE

Answer 11

True

Question 12

What is perception?

Answer 12

Brain’s construction of stimuli

Question 13

Action potentials travel along neurons dedicated to a particular

Answer 13

Stimulus

Question 14

How does the brain distinguish stimuli such as sight or sound?

Answer 14

Solely by the path along which action potentials have arrived

Question 15

What are 5 categories that a stimulus falls under?

Answer 15

1. Mechanoreceptors
2. Electromagnetic receptors
3. Thermoreceptors
4. Pain receptors
5. Chemoreceptors

Question 16

What are mechanoreceptors?

Answer 16

Pressure, touch, stretch and motion.

Some animals may use it to feel environment such as cats and rodents who use whiskers to get information in nearby objects

Question 17

Electromagnetic receptors

Answer 17

Detect electromagnetic energy such as light, electricity, and magnetism

Some animals use it to detect electricity field made by prey. Or they can use it to migrate earth using Earth’s magnetic field

Question 18

Thermorecptors?

Answer 18

Detect heat and cold
Snakes have these to detect in infrared radiation from prey

Question 19

Pain receptors or nociceptors

Answer 19

Detect stimuli that reflect condiond that can damage animal tissues
-Helps you runaway from danger and detect pain
- prostaglandin will worsen pain by increasing receptor sensitivity: aspirin and ibuprofen help by inhibiting this synthesis

Question 20

Chemoreceptors

Answer 20

Transit information about the total volume of solute concentration of a solution

Question 21

Olfactation(smell) and gestation (taste) fall under the category of

Answer 21

Chemoreceptors

Question 22

Mammals can distinguish between thousands of different odors

Answer 22

True

Question 23

Humans and mammal cab recognize 5 different types of taste. On any region of theue tongue. What are they?

Answer 23

Sweet. Sour, bitter,salty and umami

Question 24

Taste receptors are organized into____ are mostly found in projections called

Answer 24

Taste buds, Papillae