Unit Three

Question 1

What are the four kinds of touch receptors?

Answer 1

1. Meissner Corpuscle
2. Pacinian Corpuscle
3. Merkel cell-neurite Complex
4. Ruffini Corpuscle

Question 2

Most sensitive areas of the body according to the Humunculus

Answer 2

The hands, fingers, and lips

Question 3

What do the meissner corpuscle receptors signal to?

Answer 3

Dynamic deformation, or feeling air movement across the skin

Question 4

What do the pacinian corpuscle receptors signal to?

Answer 4

Vibration

Question 5

What do the Merle cell-neurite complex receptors signal to?

Answer 5

Indentation depth in the skin

Question 6

What do the Ruffini corpuscle receptors signal to?

Answer 6

Stretching of the skin

Question 7

What is the primary neurotransmitter involved in movement at the neuromuscular junction?

Answer 7

Acetylcholine

Question 8

How is a basic simple reflex movement generated in the neuromuscular junction?

Answer 8

The connection between motoneurons and skeletal muscles allows movement that does not have to be stimulated by the brain