Senses

Question 1

perception

Answer 1

concious awareness of the sensation

Question 2

General senses

Answer 2

sensation of temperature, pain, touch, pressure, vibration, and proprioception (body position).

Question 3

special sense

Answer 3

sensation of smell, taste, balance, hearing and vision. The receptors for these stimuli are in specialized sense organs.

Question 4

Each free nerve ending will have a certain area in which it can receive stimuli

Answer 4

recetive field

Question 5

There are very few free nerve endings in deep tissues or in most visceral organs. Pain reception in these tissues is often referred to superficial areas on the body. This phenomenon is called

Answer 5

referred pain

Question 6

Thermoreceptors are a type of

Answer 6

free nerve endings

Question 7

3 groups of mechanoreceptors

Answer 7

tactile recptors, baroreceptors, and proprioceptors

Question 8

Answer 8

free nerve endings of root plexus

Question 9

Answer 9

free nerve endings sensitive to touch and pressure

Question 10

Answer 10

Merkel cells and tactile discs. Sensitive to fine touch and pressure

Question 11

Mechanoreceptors include:

Answer 11

Lamellar (Pacini) corpuscles, ruffini, (bulbous) corpuscles, tactile (meissner) corpuscles, bulboid corpuslce

Question 12

are also found where tactile sensitivities are extremely developed, (eyelids, lips, fingertips, nipples, & external gentalia); some types also seem to be sensitive to cold.

Answer 12

Bulboid corpuscles (Krause end bulbs):

Question 13

found where tactile sensitivities are extremely developed, (eyelids, lips, fingertips, nipples, & external gentalia); they have tightly coiled dendrites and are encapsulated by Schwann cells and a fibrous capsule.

Answer 13

Tactile (Meissner) corpuscles:

Question 14

consists of a core of collagen fibers that are continuous with collage fibers in the dermis. Dendrites are interwoven in the collagen, so any tension or distortion of the dermis stretches or compresses the dendrites.

Answer 14

Ruffini (bulbous) corpuscles:

Question 15

formed of free dendrites embedded in the wall of a hollow tube; when the wall is stretched or recoils it distorts the dendrites and alters the nerve transmission.

Answer 15

2. Mechanoreceptors: Baroreceptor

Question 16

Examples of a type of mechanoreceptors:

Muscle spindles: monitor the length of skeletal muscles.

Golgi tendon organs: monitor the tension in tendons to prevent permanent damage due to excess tension.

Answer 16

Proprioceptor

Question 17

monitor the tension in tendons to prevent permanent damage due to excess tension.

Answer 17

Golgi tendon organs:

Question 18

: monitor the length of skeletal muscles.

Answer 18

Muscle spindles

Question 19

Chemoreceptors respond to small changes in very specific water and lipid soluble substances; they are only found in a very few organs where they monitor levels of dissolved gasses (O2 and CO2) and pH.

Answer 19

chemoreceptors

Question 20

General Sense categories

Answer 20

Free Nerve endings, mechanoreceptors, proprioceptors

Question 21

1,2,3,4

Answer 21

lacrimal gland, superior and inferior canaliculi, lacrimal sac, nasolacrimal duct

Question 22

1,2,3

Answer 22

1. choroid,
2. retina
3. sclera

Question 23

Answer 23

pupillary dilator muscles, and pupillary constrictor muscles

Question 24

1,2,3,4

Answer 24

malleus, incus, stapes, tympanic cavity