Unit 7: Sensory System

Question 1

SENSORY RECEPTORS combine with m_ and t_ to form SENSE ORGANS

Answer 1

muscles and tissue

Question 2

Most SENSORY RECEPTORS consist of specialized _ cells

Answer 2

NERVE CELLS (or nerve endings)

Question 3

SENSORY RECEPTORS transmit info about (TLI)
T_ of stimulus
L_ of stimulus
I_ of stimulus

Answer 3

type
location
intensity

Question 4

5 types of sensory receptors.
1. CHEMOreceptors respond to _ in the body

Answer 4

Chemoreceptors respond to ODORS in body

Question 5

5 types of sensory receptors.
2. MECHANOreceptors detect p_, STRETCH, or VIBRATION

Answer 5

PRESSURE, stretch or vibration

Question 6

5 types of sensory receptors.
3. THERMOreceptors detect _ changes

Answer 6

temperature

Question 7

5 types of sensory receptors.
4. NOCIceptors detect _

Answer 7

pain

Question 8

5 types of sensory receptors.
5 PHOTOreceptors detect _

Answer 8

light

Question 9

General senses include PAIN, PRESSURE, TOUCH, STRETCH & TEMP

General senses involve receptors widely distributed in _, _, _

Answer 9

muscles, tendons, skin, joings

Question 10

NOCICEPTORS (pain) are found in s_ and m_ membranes, as well as EVERY ORGAN

NOCICEPTORS use fast and slow _ fibers

Answer 10

SKIN

MUCOUS membranes

fast and slow PAIN fibers

Question 11

Fast pain fibers are found in _ and m_ membranes

Answer 11

SKIN & MUCOUS MEMBRANES (sharp pain)

Question 12

Slow pain fibers are found deep in _

Answer 12

body organs (dull pain)

Question 13

REFERRED pain is when pain is felt in a _ part of the body

Answer 13

different

Question 14

True source of pain can be difficult to identify b/c sensory impulses from DIFFERENT areas travel to brain over _ pathway

Answer 14

same

Question 15

Special senses include (SHEV)
s_
h_
e_
v)

Answer 15

smell
hearing
equllibrium
vision

Question 16

GUSTATION = sense of _

Answer 16

taste

Question 17

Taste buds for around the P_ on the tongue. INVOLVES facial, vagus, glossopharyngeal nerve

Answer 17

PAPILLAE (protusions)

Question 18

OLFACTION = sense of _

Olfactory receptors found in e_ tissue that lines the roof of n_ cavity

Involves NERVE1 (olfactory)

Answer 18

Smell

ephithileal tissue

nasal cavity

Question 19

Structure of OUTER EAR

1. The visible part of the outer ear is the a___ (or pinna)
2. The opening of the auditory canal is the a_ MEATUS (or external auditory)
3. The part that lines the canal and produces cerumen is the c_ g_

Answer 19

1. AURICLE (outer part)
2. ACOUSTIC MEATUS (or external auditory)
3. CERUMEN gland

Question 20

Structure of MIDDLE EAR

1. The t_ membrane (eardrum) separates outer ear from middle ear
2. The MALLEUS, INCUS, and STAPES are the auditory bones that connect the e_ to the o_window
3. Auditory or EUSTACHIAN TUBE is the passage from mid ear to NASApharynx to equalize p_ on both sides of tympanic membrain

Answer 20

1. TYPANIC MEMBRANE (eardrum)
2. Connect EARDRUM to OVAL WINDOW
3. equalize pressure

Question 21

Structure of INNER EAR

1. Canals and vestibules are FLUID-filled structures that help maintain e_ (or balance)
2. Fluide filled structure for hearing (including Corti organ) is called the C_

Answer 21

1. equilibrium (or balance)
2. Cochlea

Question 22

Semiscircular canals detect d_ equilabrium ( head movement)

Answer 22

DYNAMIC equilabrium

Question 23

VESTIBULES detect S_ equalibrium (head not moving)

Answer 23

STATIC equilibrium

Question 24

palPEbrae is another name for _

Answer 24

eyelids

Question 25

ConJUNCtiva is a transparent mucous membrane that lines the _ surface of the eye and the a_ surface of the eyeball. CONJUNCTIVA keeps eyeball m_

Answer 25

lines INNER surface of eyeLID ANTERIOR surface of eyeBALL keeps eyeball MOIST

Question 26

Tarsal glands are found at the e_ of the eye. THey secrete _ to slow evaporation of tears and form seal when eyes closed

Answer 26

at EDGE of eye secrete OIL

Question 27

LACRIMAL PUNCTUM are p_ found at the END of the lacrimal canal (DRAIN TEARS)

Answer 27

PORES to train tears

Question 28

LACRIMAL GLANDS are found _ the eye. They secrete _.

Answer 28

found ABOVE eye secrete TEARS

Question 29

NASOlacrimal duct is the passageway that carries _ into the n_ cavity

Answer 29

TEARS into NASAL cavity

Question 30

3 TISSUE LAYERS OF EYE #1 = FIBROUS outer layer includes the white of the eye (called the s_) which contains PAIN RECEPTORS

Answer 30

SCHLERA

Question 31

3 TISSUE LAYERS OF EYE #2 = VASCULAR Middle Layer which includes a) the I_ (ring of muscle to dilate pupil) b) CILIARY B_ c) CHO_ - vascular layer

Answer 31

Iris Ciliary BODY CHOROID

Question 32

The OPTIC DISC OF RETINA -the point where NERVE FIBRES leave the retina and converge to become the o_ n_ also where blood vessels enter/leave eye

Answer 32

optic nerve

Question 33

ANTERIOR cavity of eye is filled with a_ humour and is between the l_ and the c_

Answer 33

aqueous humor lens and cornea

Question 34

LENS of EYE is a disc of t_ that changes s_ for NEAR & FAR vision

Answer 34

tissue changes SHAPE

Question 35

POSTERIOR cavity is filled with v- humour and is b_ the lens

Answer 35

VITREOUS humor BEHIND the lens

Question 36

PROCESS OF VISION 1. LIGHT focuses on R_ and produces an image that is u__ 2. R_ and C_ convert image to NERVE IMPULSES 3. Impulses are transmitted to b_

Answer 36

1. retina upside down 2. rods and cones 3. brain

Question 37

The bending of light rays so they focus precisely on retina is called _

Answer 37

REFRACTION