Chapter 16: Nervous System- Senses
The ability to respond to a stimulus
A feature common to all receptors is ____.
Optic disc
A lack of photoreceptors in this structure creates the "blind spot"?
2
Each eye has ____ lacrimal puncta.
Buds
Gustatory cells are found in taste ____.
Gustatory
In a taste bud the basal cells replace the ____ cells.
Tracts
Neurons in the olfactory bulb travel through the olfactory ____ to the brain.
A. Lateral geniculate nucleus of the thalamus B. Superior colliculi
Optic tracts extend to which of the following after they leave the optic chiasm?
1. Sclera 2. Choroid 3. Pigmented layer of retina 4. Neural layer of retina
Order these structures from superficial to deep:
1. Lacrimal puncta 2. Lacrimal canaliculus 3. Lacrimal sac 4. Nasolacrimal duct
Order these structures in the order that tears travel through them:
1. Malleus 2. Incus 3. Stapes
Place the auditory ossicles in the order that they occur from lateral to medial:
1. Fibrous tunic 2. Vascular tunic 3. Retina
Place the layers of the eye in order from superficial to deep:
1. Choroid 2. Photoreceptors 3. Horizontal cells 4. Bipolar cells
Place the structures of the eye in order from superficial to deep:
1. Iris 2. Ciliary body 3. Choroid
Place the structures of the vascular tunic in order from anterior to posterior:
1. External ear 2. Middle ear 3. Inner ear
Place the three regions of the ear in order from lateral to medial:
Simple in structure
Receptors for general senses are usually ____.
Interoceptors
Specific types of receptors called ____ detect stimuli in the internal organs.
Basal
Taste buds are made of gustatory cells, supporting cells, and ____ cells.
Elastic
The auricle has ____ cartilage that supports its structure.
Smooth muscle
The ciliary muscles are made of:
Tympanic membrane, eardrum
The external acoustic meatus terminates at the ____ ____ most commonly called the ____.
Palpebrae
The eyelids are also called ____.
Ciliary body
The iris is continuous with the:
Conjuctival fornix
The junction of the palpebral and ocular conjunctiva is called the :
Lysozyme
The lacrimal fluid prevents bacterial infection because it contains an anitbacterial enzyme called ____.
Orbital, palpebral
The lacrimal gland has a superior or ____ part and an inferior or ____ part.
Flattened
The lens is ____ when we are viewing faraway objects.
Cornea
The limbus system is the junction between the sclera and:
Lens
The suspensory ligaments connect the ____ to the ciliary muscles.
Air
The tympanic cavity if filled with:
Humor
The vitreous body is also called the vitreous ____.
Visceral
There are two types of nociceptors, somatic nocicrecptors and ____ nociceptors.
False
True or false: The eye is spherical measuring about 5 centimeters in diameter and most of it is receded into the orbit of the skull.
True
True or false: The primary purpose of the eyebrows is to keep sweat out of the eyes.
Thousands
We have the ability to distinguish one odor among ____ of different ones.
Olfaction
We use the sense of ____ to sample our environment for information about the food we eat, the presence of other individuals in the room, or potential danger.
Anterior chamber
What chamber is between the iris and cornea?
A. Amplifying sound waves B. Transmit sound waves to inner ear
What is the function of auditory ossicles?
Tactile receptor
What is the most numerous type of receptor?
Choroid
What structure is filled with pigment from melanocytes?
Sclera
What structure is the "white" of the eye?
Exteroceptors
What type of receptor is found in the mucous membranes?
Contracts, dilates
When light hits the eye, the pupil ____ in bright light or ____ in dim light.
A. Ear B. Skin
Where are mechanoreceptors found?
Inner ear
Where is the cochlea located?
A. Sweet B. Sour C. Bitter D. Salt E. Umami
Which are basic taste sensations?
A. It is vascular B. It contains goblet cells C. It does not cover the cornea
Which are true of the conjunctiva?
A. Sclera B. Cornea
Which of the following are a part of the fibrous tunic?
A. Filiform B. Fungiform C. Foliate D. Vallate
Which of the following are types of papillae?
Skin, oral cavity
Which of the following structures contain exteroceptors?
A. Touching a hot pan B. Sprained ankle C. Exposure to acid on the skin
Which of the following would stimulate somatic nociceptors?
Chemoreceptors, thermoreceptors, photoreceptors, mechanoreceptors, nociceptors
Which terms indicate a receptor type that is classified by its modality of stimulus?
Chemoreceptors
____ are receptors that detect chemicals.