Somatosensory System

Question 1

Temperature Qualities

Answer 1

Warmth and coldness due to specified sensors

Warmth points close to fingertips, lips, cheeks

Question 2

Coldness sensors

Answer 2

Free not myelinated neuron terminals

Spontaneous activity erratic increase fast adaption

Question 3

Warmth sensors

Answer 3

Free not myelinated neuron terminals

Question 4

Perception of temperature

Answer 4

Only if temperature changing
Faster change and larger affected area the smaller changes perceptible
Transfer via CNS
Parallel to pain tract in central horn into somatosensible cortex

Question 5

Proprioception

Answer 5

Receptors for stimuli from muscles, tendons, joints

1. Receptors for position of body part and joints to each other
2. Sensors for force effort in muscles
3. Sensors for movement

Question 6

Joint sensors

Answer 6

Position receptors similar to Ruffini corpuscles (SA)

Movement receptors similar to Pacini corpuscles )FA)

Question 7

Muscle sensors

Answer 7

Muscle spindle 
Golgi apparatus (organs at tendons, if stimulus = contraction of muscle)

Question 8

Pain unphysiological condition

Answer 8

• overload/ strain

- deformation of periosteum

Question 9

Visceroception

Answer 9

Autonomous: maintenance of homeostasis (unconscious)
Afferent signals about feeling of organs
Cardiovascular mechanoreceptors: Adaption of heart rate