Muscle and Joint receptors

Question 1

What are Tendon - Golgi Tendon Organ

Answer 1

Within tendons of striated skeletal muscles near the musculotendinous junction
Senses changes in:
-Muscle/tendon tension
-Muscle contraction
-Extreme of stretch
-Similar to Ruffini Endings

Question 2

Muscle - Muscle Spindle

Answer 2

Provides information about change in muscle length and rate of change in muscle length.

Important for the regulation and maintenance of muscle tone

Question 3

Muscle - Muscle Spindle - Intrafusal

Answer 3

Fibers within each muscle spindle

-Distributed in parallel amongst the skeletal muscle extrafusal fibers.

Question 4

What are the two different types of receptor endings within the muscle spindle?

Answer 4

• Annulospiral (Primary) ending

- Flower-spray (secondary) endings

Question 5

What do the annulospiral endings wrap around?

Answer 5

the middle of the intrafusal fibers

Question 6

Where are the flower-spray endings?

Answer 6

One on either side of the annulospiral ending

Question 7

Joint receptors are found in?

Answer 7

joint capsules and ligaments

Question 8

Non-proprioceptors

Answer 8

Nociceptors

• Not proprioceptors (tissue damage)
• Muscles, tendons, joint capsules and ligaments

Thermoreceptors may also exist in muscles, but not yet confirmed