Discriminative touch & proprioception

What is the definition of discriminative (fine) touch?

sensation that is specific in terms of location

What is the definition of proprioception?

sense of body position and movement

What type of mechanoreceptor is A?

merkel cell

What is the function of mechanoreceptor A?

sensitive to fine differences of pressure, detects angles

What type of mechanoreceptor is B?

meissners corpuscle

What is the function of mechanoreceptor B?

sensitive to texture when moving over a surface

What type of mechanoreceptor is C?

pacinian corpuscle

What is the function of mechanoreceptor C?

sensitive to pressure and vibration, proprioception

What is A?

tendon organ

What is the function of A?

detects changes is tendon stretch

What is B?

muscle spindle

What is the function of B?

detects changes in muscle length

What is the function of the sensory receptors of Aα?

proprioceptors of skeletal muscle

What is the function of the sensory receptors of Aβ?

mechanoreceptors of skin

What is the function of the sensory receptors of Aδ?

pain and temperature

What is the function of the sensory receptors of C?

pain, temperature and itch

What type of afferent fibre is purple?

Aα

What type of afferent fibre is blue?

Aβ

What type of afferent fibre is red?

Aδ and C

What is 11?

gracile nucleus

What is 12?

cuneate fasciculus

What is 13?

gracile fasciculus

What is 14?

dorsal root ganglion

What is 1?

primary sensory cortex

What is 2?

internal capsule

What is 3?

ventral root posterolateral nucleus of the thalamus

What is 4?

ventral posteromedial nucleus of the thalamus

What is 5?

ventral trigeminothalamic tract

What is 6?

mesencephalic trigeminal nucleus

What is 7?

principal trigeminal nucleus

What is 8?

trigeminal ganglion

What is 9?

medial lemniscus

What is 10?

cuneate nucleus