(Summary) Senses

Question 1

__ is the system that provides information about the body senses, including touch,
movement, pain, and temperature.

Answer 1

Somatosensory System

Question 2

__ is the sensory system that provides information about the position and movement of the head.

Answer 2

Vestibular System

Question 3

__ is a structure in the inner ear vestibular system that provides information about the angle of the head relative to the ground and about linear acceleration.

Answer 3

Otolith organ

Question 4

__ is one of the three looping chambers found in the inner ear that provide information regarding the rotation of the head.

Answer 4

Semicircular Canal

Question 5

__ and __ are the structures of the otolith organs.

Answer 5

Saccule
Utricle

Question 6

__ is the force perceived when our rate of movement changes.

Answer 6

Linear Acceleration

Question 7

__ is a stone made of calcium carbonate that is attached to the hair cells in the otolith organs.

Answer 7

Otolith

Question 8

__ is the nucleus of the thalamus that receives information regarding pain, touch, and the position and movement of the head.

Answer 8

Ventral Posterior (VP) Nucleus

Question 9

__ is the cortex located in the postcentral gyrus of the parietal lobe that is responsible for the initial cortical processing of somatosensory input.

Answer 9

Primary Somatosensory Cortex

Question 10

__ is hairless skin.

Answer 10

Glabrous Skin

Question 11

__ is the outermost layer of the skin.

Answer 11

Epidermis

Question 12

__ is the layer of skin lying below the outermost epidermis.

Answer 12

Dermis

Question 13

__ is the layer of tissue lying below the dermis.

Answer 13

Subcutaneous Tissue

Question 14

__ is a skin receptor that senses touch, pressure, or vibration.

Answer 14

Mechanoreceptor

Question 15

__ is a mechanoreceptor in which the axon fibers are surrounded by a fluid0filled capsule formed of connective tissue.

Answer 15

Encapsulated Receptor

Question 16

__ is an encapsulated, fast-adapting mechanoreceptor with small receptive filed that responds primarily to pressure.

Answer 16

Meissner’s corpusle

Question 17

__ is an encapsulated, rapidly adapting mechanoreceptor with large receptive field that provides information about pressure and vibration.

Answer 17

Pacinian Corpuscle

Question 18

__ is a nonencapsulated, slow-adapting mechanoreceptor with small receptive field that provides information primarily about pressure.

Answer 18

Merkel’s Disk

Question 19

__ is a nonencapsulated, slow-adapting mechanoreceptor with large receptive field that provides information regarding stretch.

Answer 19

Ruffini’s Ending

Question 20

__ is a myelinated fiber that carries information about cold and sharp pain to the central nervous system.

Answer 20

Aδ (alpha-delta) fiber

Question 21

__ is a small, unmyelinated fiber that carries information about temperature, itch m and dull, aching pain to the central nervous system.

Answer 21

C fiber

Question 22

__ is the area of the skin surface served by the dorsal roots of one spinal segment.

Answer 22

Dermatome

Question 23

__ is the spinal pathway that carries information about touch and position to the medulla.

Answer 23

Dorsal Column

Question 24

__ is the pathway originating in the dorsal column nuclei and synapsing in the ventral posterior (VP) nucleus of the thalamus that is responsible for carrying information about touch and position.

Answer 24

Medial Lemniscus

Question 25

__ is a nerve that carries sensation from mechanoreceptors, temperature receptors, and pain receptors in the skin of the face, mouth, tongue, and the dura mater of the brain.

Answer 25

Trigeminal Nerve

Question 26

__ are areas in the parietal lobe adjacent to primary somatosensory cortex that process a wide variety of complex somatosensory inputs.

Answer 26

Secondary Somatosensory Cortex

Question 27

__ is a nerve ending in the skin that responds to surface temperature.

Answer 27

Thermoreceptor

Question 28

__ is a nerve ending in the skin that responds to heat.

Answer 28

Warm Fiber

Question 29

__ is a nerve ending in the skin that responds to cold.

Answer 29

Cold Fiber

Question 30

__ is a nerve ending that responds to painful stimuli.

Answer 30

Nociceptor

Question 31

__ is a group of cells in the outer gray matter of the dorsal horn that receive synapses from pain fibers.

Answer 31

Substantia Gelatonosa

Question 32

__ is a neurotransmitter substance associated with the sense of pain that also serves as a stimulus at some nociceptors.

Answer 32

Substance P

Question 33

__ are fibers that carry pain and temperature information from the substantia gelatinase to the thalamus.

Answer 33

Spinothalamic Pathway

Question 34

__ is a nucleus in the brainstem that receives pain and temperature information from the head and neck.

Answer 34

Spinal Trigeminal Nucleus

Question 35

__ is a pathway carrying pain and temperature information from the spinal trigeminal nucleus to the thalamus.

Answer 35

Trigeminal Lemniscus

Question 36

__ is one of many nuclei in the thalamus that receive some pain and temperature input.

Answer 36

Intralaminar Nucleus

Question 37

__ is the sense of smell.

Answer 37

Olfaction

Question 38

__ is the layer in the nasal cavity containing olfactory receptors.

Answer 38

Olfactory epithelium

Question 39

__ are structures found within the olfactory bulbs.

Answer 39

Glomeruli

Question 40

__ is a fiber pathway connecting the olfactory bulbs to the olfactory cortex.

Answer 40

Olfactory tract

Question 41

__ is the cortex in the frontal lobe that responds to the sense of smell.

Answer 41

Olfactory cortex

Question 42

__ is one of the five basic taste groups, characteristics of tastes found in seaweed and other "meaty or savory" elements of Asian cuisine.

Answer 42

umami

Question 43

__ are bumps on the tongue containing taste buds and taste receptors.

Answer 43

Papillae

Question 44

__ are small fibers extending from taste receptors.

Answer 44

Microvilli