Discuss sensory receptor input to the CNS

Question 1

Central Nervous System (2)

Answer 1

Brain and Spinal Cord

Question 2

Peripheral Nervous System (2)

Answer 2

Motor Neurons and Sensory Neurons

Question 3

Motor Neurons (2)

Answer 3

CNS to muscles and glands

Somatic and Autonomic Nervous System

Question 4

Autonomic (2)

Answer 4

Involuntary responses - sympathetic or parasympathetic

Question 5

Functions of the Nervous System (5)

Answer 5

Stimuli
Sensory input
Integration (brain and spinal cord)
Motor output
Effector (muscles)

Question 6

Sensory receptors (explained)

Answer 6

Stimuli stimulates sensory receptors to generate an action potential which is sent to the parietal lobe to be integrated

Question 7

Integration (explained - 3)

Answer 7

Action potential received within parietal lobe
Detects which stimuli caused action potential
Bases decision on prior knowledge and experienced stored.

Question 8

Motor output (explained - 3)

Answer 8

Motor neurons reach muscles/glands, muscles or gland contracts, causing bones to move, causing body part to move

Question 9

Effectors - 3 muscles 2 glands

Answer 9

Skeletal muscle
Smooth muscle
Cardiac muscle
Endocrine gland
Exocrine gland

Question 10

Sensory receptor function (2)

Answer 10

Responds to changes in environment

Responds to stimuli

Question 11

3 different type of stimulus

Answer 11

Chemical
Pressure
Light

Question 12

Mechanoreceptors

Answer 12

Respond to mechanical forces; touch, pressure, vibration etc

Question 13

Thermoreceptors

Answer 13

Respond to temperature changes

Question 14

Photoreceptors

Answer 14

Respond to light

Found on the retina

Question 15

Chemoreceptors

Answer 15

Respond to chemical changes (taste or smell)

Question 16

Nocireceptors

Answer 16

Respond to damaging stimuli that result in pain

Question 17

Exteroceptors

Answer 17

Detect stimuli coming from the external environment

Question 18

Visceroceptors

Answer 18

Detect chemical changes, tissue stretch and temperature located on visceral organs

Question 19

Proprioceptors

Answer 19

Within skeletal muscles, tendons, joints, ligaments, connective tissue etc

Question 20

Muscle spindles (3)

Answer 20

Found in skeletal muscle, detects muscle stretch and initiates a reflex that resists the stretch

Question 21

Tendon organs (3)

Answer 21

Bundle of tendon fibres that prevent the stretching of tendon by initiation the relaxation of a muscle

Question 22

Joint receptor (3)

Answer 22

Monitor the stretch or the synovial joint provides information of joint position and movement

Question 23

Hearing receptor (2)

Answer 23

Hair cells, found within the cochlea in the ear

Question 24

Multipolar

Answer 24

Sensory neuron

Question 25

Bipolar

Answer 25

Effector neuron

Question 26

Unipolar

Answer 26

Motor neuron