10 Sensory (Lecture)

Question 0

3 types if maechanoreceptors

Answer 0

Baroreceptors-blood vessels monitors BP Tactile- touch Proprioceptors- stretch receptors at a joint

Question 1

Mechanoreceptors

Answer 1

Respond to physical force applied to the body

Question 2

Thermoreceptors

Answer 2

Respond to temperature changes

Question 3

Chemoreceptors

Answer 3

Respond to specific chemicals

Question 4

2 types of chemoreceptors

Answer 4

Osmoreceptors -particle concentration in the blood Nociceptors- pain damage to body can cause ATP to leak into blood stream causing pain

Question 5

Photoreceptors

Answer 5

Respond to light

Question 6

Gustation

Answer 6

Taste

Question 7

Lingual papillae

Answer 7

Peg like structures on surface of tongue 4 types

Question 8

Circumvallate papillae

Answer 8

Largest of the 4. Posterior of tongue. 7-12 total. Contain many taste buds.

Question 9

Fungiform papillae

Answer 9

Intermediate sized. Most numerous with a taste bud. Can be seen with eye.

Question 10

Foliate papillae

Answer 10

Lateral and posterior in the tongue. Contains taste buds

Question 11

Filiform papillae

Answer 11

Smallest of the 4 and most numerous. DO NOT contain taste bud.

Question 12

Tastants

Answer 12

Any chemical that a taste bud can detect. Must dissolve in saliva or it will not be tasted.

Question 13

4 primary taste sensations

Answer 13

Sweet sour salty bitter

Question 14

Olfactory receptors are located

Answer 14

In the roof of the nasal cavity. Holes in the cribriform plate are smell foramen

Question 15

Olfactory gland

Answer 15

Makes mucus

Question 16

Vomer nasal organ VNO

Answer 16

Just post to nose maybe free one receptor

Question 17

Oderants

Answer 17

A chemical that stimulates an olfactory receptor. Must dissolve in mucus or it cannot be smelled.

Question 18

Adaptation (smell)

Answer 18

Smell receptors adapt very quickly. You can only smell new smells.

Question 19

What type of receptors replace them selves

Answer 19

Taste and smell

Question 20

Auricle (pinna)

Answer 20

Flap of tissue with grooves and ridges that directs sound toward the ear canal.

Question 21

Ceruminous glands

Answer 21

Produce ear wax (outer ear)

Question 22

Tympanum

Answer 22

Ear drum converts sound pressure waves into mechanical motion (vibration).

Question 23

Auditory ossicles

Answer 23

Transmit vibration to the choclea

Question 24

What are the 3 occicles

Answer 24

Malleous, incus, stapes

Question 25

Auditory eustation tubes

Answer 25

Connects to the throat equalizes air pressure

Question 26

Bony labyrinth

Answer 26

Entire snail body shell and antenna

Question 27

Cochlea

Answer 27

Snail contains sensory receptors for hearing

Question 28

Scala

Answer 28

Fluid filled ducts within the 3 coils

Question 29

3 types of Scala

Answer 29

Scala vestibuli- largest and longest Scala media- contains organ of corti Scala tympani

Question 30

Vestibule

Answer 30

Includes maculae, saccule, utricle. Responsible for balance. Senses gravity and linear acceleration.

Question 31

Oval window

Answer 31

Membrane covered opening that leads from the middle ear to the vestibule of the inner ear.

Question 32

Round window

Answer 32

Opening in the inner ear that is closed off to the middle ear

Question 33

Semicircular canals

Answer 33

Detect head movement

Question 34

Cristae ampullaris

Answer 34

Senses angular acceleration and deceleration.

Question 35

Ear structures in order

Answer 35

External ear - Auricle, external acoustical meatus Middle ear - tympanic membrane, ossicles (malleous, incus, stapes), oval window. Inner ear - round window, vestibule, semicircular canals, cochlea, bony labyrinth, eustation tube

Question 36

Conjunctiva

Answer 36

Inside of eyelids helps lubricate eyes.

Question 37

Lacrimal apparatus

Answer 37

Tear production and drainage

Question 38

Eye muscles

Answer 38

Lateral rectus - pulls eye lateral Medial rectus - pulls eye medial Superior rectus - pulls eye up Inferior rectus - pulls eye down Obliques - rotates eyes

Question 39

Review orbital bones

Answer 39

DO IT!

Question 40

Fibrous layer of the eye

Answer 40

Sclera, and cornea

Question 41

Vascular layer if the eye

Answer 41

Choroid, layer that holds vessels Iris (intrinsic muscle) smooth muscle that controls the size of the pupil. Pupil - opening

Question 42

Neural layer of the eye ( retina )

Answer 42

Contains photo receptors

Question 43

Anterior cavity

Answer 43

Under the cornea contains the iris and lens

Question 44

Anterior chamber

Answer 44

From cornea to iris

Question 45

Aqueous humor

Answer 45

Watery fluid that fills the anterior cavity

Question 46

Scleral venous sinuses

Answer 46

Drain aqueous humor out of the eye ( if defective glaucoma)

Question 47

Posterior chamber

Answer 47

Iris to the back of lens

Question 48

Posterior cavity

Answer 48

Everything behind the len

Question 49

Vitreous humor

Answer 49

Gel that fills the posterior cavity

Question 50

Lens accommodation

Answer 50

A change in the shape of the lens

Question 51

Ciliary muscles ( intrinsic )

Answer 51

Pull on lens to change it's shape

Question 52

Ciliary body

Answer 52

Suspensory ligaments white threads that pull on lens and also aques humor is made by the ciliary body

Question 53

Retina

Answer 53

Innermost layer contains photoreceptors.

Question 54

Macula lutea (of retina)

Answer 54

Dark spot in the center of the back of the eye

Question 55

Fovea centralis (of retina)

Answer 55

This is the center of the macula has the highest density of photo receptors.

Question 56

Optic disc

Answer 56

Light spot where optic nerve exits the eye, no photo receptors

Question 57

3 primary colors of vision

Answer 57

Red blue green

Question 58

Cones

Answer 58

Bright light receptors (color vision)

Question 59

Rods

Answer 59

Dim light receptors black and white vision

Question 60

Eyes convert?

Answer 60

Light to electricity

Question 61

Optic chiasim

Answer 61

Where optic nerve partially crosses over Temporal side does not crossover Nasal side does crossover

Question 62

Occipital lobe

Answer 62

Constructs a visual image

Question 63

Answer 63