Chapter 16: nervous system

Through which cranial nerve does gustatory nerve information travel?

- CN VII -CN IX

The structures of CN II in order from anterior to posterior

-1. Optic nerve. 2. Optic chiasm 3. tract

Which terms indicate a receptor type that is classified by its modality of stimulus

-Chemoreceptors (chemical) -Mechanorecptors ( touch/sound) -Thermoreceptors (Heat)

What structure is filled with pigment from melanocytes?

-Choroid

Which of the following are types of papillae?

-Filiform -Follate -Vallete -Fungiform

Which of the following are the functions of the ear?

-Hearing -Equilibrium

What type of receptor is found in smooth muscle of organs?

-Intereoceptors

Which are true of the conjunctiva?

-It does not cover the cornea -It is vascular -It contains goblet cells

What types of receptor detects changes in light?

-Photoreceptors

Where are mechanoreceptors found?

-Skin -Ear

Which are basic taste sensations?

-Sour -Sweet -Umami

Which of the following would stimulate somatic nocicereptors?

-Sprained ankle -Touching a hot pan -Exposure to acid on the skin

What is the function of the auditory ossicles?

-Transmit sounds waves to inner ear -Amplify sound

Which are true of the cornea?-

-Transparent -Avascular

Hearing and equilibrium are transmitted along which cranial nerve?

-VIII

Which pf the following are part of the fibrous of the fibrous tunic?

-cornea -Sclera

The sclera

-is made of dense connective tissue -provides for eye shape

Which of the following are cells found in the olfactory epithelium?

-olfactory cells -Basal cells -Supports cells

Structures of the eye in order from superficial to deep

1. Choroid 2.Photoreceptors 3.Horizontal cells 4.Bipolar cells

Auditory ossicles in order

1. Malleus 2. Incus 3. Stapes

Structures of the vascular tunic in order from anterior to posterior.

1.Iris 2.Ciliary body 3.Choroid

Order structures from superficial to deep:

1.Sclera 2.Choroid 3.Pigmented layer of retina 4.Neural layer of retina

Structures in the order that tears travel through them.

1.lacrimal puncta 2. Lacrimal canaliculus 3.Lacrimal sac 4.Nasolarimal duct

The tympanic cavity is filled with:

Air

Taste buds are made of gustatory cells, supporting cells and ___ cells

Basal

Receptors initiate sensory input to the

Central Nervous system

Gustatroy cells are

Chemoreceptors

_____ are receptors that detect chemicals?

Chemoreceptors

What is the name of the "snail-shaped" structure

Cochlea

The junction of the palpebral and ocular conjunctiva is called the

Conjunctival fornix

The auricle has ___cartilage that supports its structure

Elastic

The auricle sound waves into the bony tube called the

External auditory canal

Cutaneous receptors are a type of

Exteroceptors

The primary function of the _____is to prevent large objects from contacting the eye.

Eyelashes

T/F: The eye is spherical measuring about 5 centimeters in diameter and most of it is receded into the orbit of the skull

False

The lens is ____ when we are viewing faraway objects

Flattened

In a taste bud the basal cells replace the ____ cells

Gustatory

The vitreous body is also called the vitreous

Humor

What structure is the dividing line between the anterior and posterior chambers?

Iris

The ____ controls the size or diameter of the ___ and thus the amount of light entering the eye

Iris, Pupil

Where are proprioceptors found?

Joints

Tactile receptors are a type of

Mechanorecptors

A lack of photoreceptors in this structure creates the "Blind spot" ?

Optic disc

The fat surrounding the eye is called___ fat

Orbital

The lacrimal gland has a superior or ____ part and an inferior or ___ part

Orbital / palpebral

The eyelids are also called____

Palpebrae

What is the space behind the lens called?

Posterior cavity

As tears drain, through the lacrimal canucle, they enter small holes called the lacrimal ____

Puntca

Receptors for general senses are distributed throughout the ____and viscera.

Skin

Olfaction is the sense of

Smell

Where is the lacrimal gland located?

Superior and lateral to the eye

The____ ligaments connect the ciliary body to the lens

Suspensory

A feature common to all receptors is

The ability to respond to a stimulus

We have the ability to distinguish one odor among_____ of different ones.

Thousands

Neurons in the olfactory bulb travel through the olfactory ____to the brain.

Tracts

Hearing and our sense of balance comes form the stimulation of which cranial nerve?

Vestibulcochlear

The suspensory ligaments connect the _____ to the ciliary muscles.

lens

The___, the black hole in the eye, is surrounded by the colorful

pupil, iris