Special Senses(Lymphatic) Flashcards
what are the important parts of the eye?
sclera
cornea
retina
iris
pupil
lens
macula
vitreous humor
the white of the eye or the white outer layer of the eyeball and functions as the supporting wall of the eyeball. Also maintains the shape of the eye and protects is from injuries
sclera
acts as the eye’s outermost lens. It functions like a window that controls and focuses the entry of light into the eye.
Cornea
the cornea contributes between __-__ percent of the eye’s total focusing power.
67-75 percent
a thin layer of tissue that covers approximately 65 percent of the back of the eye, near the optic nerve. Additionally, it converts light from the lens to neural signals and transmit them to the brain for visual recognition.
Retina
the colored part of the eye which helps regulate the amount of light entering the eye.
iris
function is clearly that of controlling the amount of light entering the eye, and hence the light reflex.
pupil
it focuses the light rays that pass through it (and onto the retina) in order to create clear images of objects that are positioned at various distances.
lens
located near the center of the retina, its function is to process sharp, clear, straight-ahead vision.
Macula
is a transparent, colorless, gelatinous mass that fills the space in the eye between the lens and the retina.
vitreous Humor
transparent, colorless, gelatinous mass, flows in and out of the front of your eye, its job is to keep proper ocular pressure (eye pressure) in your eye.
Aqueous humor
external and accessory parts of the eye
eyelids
eyelashes
conjunctiva
lacrimal gland
are thin soft tissue structures that cover and protect the anterior surface of the eyeball.
eyelids
the short hairs that grow along the edge of our eyelids
eyelashes
is a transparent mucous membrane that lines both the inner surface of the eyelids and the anterior surface of the eyeball (except the cornea).
Conjunctiva
two parts of the conjunctiva
bulbar and palpebral
what is bulbar conjunctiva
lines the anterior eye
what is the palpebral conjunctiva
lining the eyelids
situated on lateral end of each eye and produces lacrimal fluid
lacrimal gland
is a clear liquid secreted by the lacrimal glands.
tears
what are the things that are contained in the tears?
dilute salt solution
mucus
antibodies
lysozyme
the organ of hearing and balance.
ears
what are the three sections of the ears
external, middle, internal ears.
narrow chamber in the temporal bone. Lined with skin and ceruminous (earwax) glands. Ends at the tympanic membrane (eardrum).
external acoustic meatus
shell shaped structure surrounding the auditory canal opening.
auricle
An Air-filled, mucosa-lined cavity within the temporal bone.
middle ear cavity
Located between tympanic membrane and oval window and round window.
middle ear cavity
AUDITORY OSSICLES
malleaus
incus
stapes
Transmit vibrations from tympanic membrane to the fluids of the inner ear.
auditory ossicles
also called the hammer and is the largeest and most lateral of the bony chain. additionally, it is a club-shaped structure.
malleus
also called the anvil, wherein it transmits vibrations from the malleus to the stapes
incus
also called the stirrup, is the smallest bone in the human body
stapes
the three parts of the inner ear
cochlea, vestibular, semicircular canal.
a hollow, spiral-shaped bone found in the inner ear, where sound waves are transduced into electrical impulses that the brain can interpret as individual frequencies of sound.
cochlea
best described as the area of the inner ear between the tympanic cavity and posterior to the cochlea that controls equilibrium and balance
vestibule
three tiny, fluid-filled tubes in your inner ear that help you keep your balance.
semicircular canal
Vestibular apparatus has two functional parts
static equilibrium and dynamic equilibrium
organs involved in smelling and tasting
nose and tongue
How do we Smell?
as vaporizer odor molecules come in contact with our olfactory epithelium, special receptor cells called olfactory receptors detect the odor and transmit the information to the olfactory bulbs which are located at the back of the nose .
the fice types of receptors of taste
sweet
sour
bitter
salty
umami
sensory organs that are found on your tongue and allow you to experience tastes that are sweet, salty, sour, and bitter. It houses the receptor organs of taste.
taste buds
The tissues and organs that produce, store, and carry white blood cells that fight infections and other diseases.
It is also a Drainage System because it facilitates the return of the excess fluids from the cells back to the blood vessels.
the lymphatic system
main function of the lymphatic system is
to remove excess fluid in the body and carry it back to the bloodstream
to help your body absorb fats
and to protect your body against invaders
A thin tube that carries lymph (lymphatic fluid) and white blood cells through the lymphatic system. .
lymphatic vessels
Is the fluid that flows through the lymphatic system
lymph
are small glands that filter lymphs through lymph vessels.
They become swollen in response to infection and tumors
lymph nodes
the three compartments of the lymph nodes
cortex, medulla, and the macrophages
contains follicles—collections of lymphocytes. Germinal centers enlarge when antibodies are released by plasma cells
cortex
contains phagocytic macrophages
medulla
engulf and destroy bacteria, viruses, and other foreign substances in lymph
macrophages
Locations of Lymph Nodes in the Body
CSAMSMIF P
CSAMSMIF P
Cervical
Supraclavicular
Axillary
Mediastinal
Supratrochlear
Mesentric
Inguinal
Femoral
Popliteal
Other Lymphoid Organs
Speen
thymus
tonsils
peter’s patches
It is a soft organ located on the left side of the abdominal cavity.
It filters and cleanses blood of bacteria, viruses and other debris.
Most important function is to destroy worn out RBC’s and return some of its breakdown products to the liver.
Spleen
a lymphoid mass found in the anterior mediastinum overlying the heart.
is responsible for producing and maturing lymphocytes, or immune cells.
these include T cells, a type of white blood cell that defends the body from infections.
THYMUS
Small masses of lymphoid tissue deep to the mucosa surrounding the throat.
Its job is to trap and remove bacteria entering the throat.
Tonsils
Are found in the wall of the intestine.
Captures and destroys bacteria.
Peter’s Patches
