Term 3 Flashcards
What does the free nerve ending pick up ?
Pain , heat and cold itch
What does the encapsulated nerve ending pick up ?
Pressure and touch
What is referred pain ?
- Pain that is picked up in an organ but felt somewhere else
- viceral pain that is felt as cutaneous pain
What does cutaneous mean ?
Skin or surface
What is the conjunctiva ?
The pink part of the eye
Lies inside of the eyelid
What is the sclera ?
The white part of the eye
What is the retina ?
The interior coating of the eye , where visual action takes place
Where is the exterior coating of the eye ?
Sclera
A tough fibrous membrane in the front
What is the middle layer of the eye called ?
Choroid layer (brownish color ) Between the sclera and retina
What is the role of the lens , sometimes called the crystal lens ?
For focusing / accommodation
What are the lens controlled by ?
The ciliary muscle
It stretches it out to see close or long distance
What is the pupil ?
The opening or the black hole of the eye
What’s the color portion of the eye that around the pupil ?
Iris
What does the iris do ?
- It makes the pupil bigger or smaller
- it’s called pupillary dialation
What accommodate/pushed the lens and iris?
Ciliary muscle
What is the cornea ?
- Part if the sclera
- Allows light waves to first enter the eye /the window of the eye
Where is the aqueous humor found ?
Water in the front
Anterior chamber
Where is the vitreous humor found ?
- Jelly like liquid
- Found in the posterior chamber
- it gives the eye a substance
Where are cones found an what is it for ?
In the retina
For color
Where are the rods& cones found ?
On the retina
What are the Rods for ?
Shading
Remember rod the vampire ;darkness
What is the role of lacrimal glands ?
Produce tears
Where are the lacrimal glands found ?
The outer cantus
What is Lysome ?
Body’s natural antiseptic
Found in tears and saliva
What’s the purpose of tears ?
It’s flows from the outter cantus to the inner cantus to lacrimal ducts to the nasopharynx and down the back
-it lubricate and protect the eye from infection
What is convergence ?
Looking at and object up close and not seeing double
What is binocular vision ?
It’s allows dept perception and makes large vision field
What is accommodation ?
Increase refractive ability of eye necessary for near vision
What is pupillary constriction ?
Blocks light rays That pass through lens and increase sharpness of image
What is the first thing the light hit In The eye ? Pathway of light rays!!!
Cornea (from eye) Anterior and posterior chamber Pupil Lens Vitreous chamber and vitreous humor Retina
Optic nerve fiber (to brain )
Cerebral cortex
What does the brain do with images when picked up ?
Interpret them
What’s in the outter ear ?
Pinna or auricle
What’s in the middle ear ?
Malleus
Incus
Stapes
The 3 occipital bones
What’s in the inner ear ?
Organ of corti
Auditory nerve
Chochlea
Semicircular canal
What is the a actual organ of hearing ?
Organ of corti
What does the organ of corti responsible for ?
Hearing and balance (equilibrium )
What nerve pair lets us see ?
Optic nerve
How many cranial nerve do we have ?
12 pair
What does vagus mean ?
Wondering nerve
What does the vagus nerve do ?
Slow heart rate
Goes down the Thoriac area to the abdominal area , controls peristalsis of the stomach
What gives us sence of taste ?
The olfactory nerve
What is the disease causes by the trigeminal nerve ?
Trigeminal neuralgia
Trigeminal neuralgia is _____ and the _____ nerve ?
Sensory
Fifth cranial nerve
The facial nerve is ______ and the ____ cranial nerve ?
Motor
7th cranial nerve
What is the occipital area ?
Visual area
What is the partial area for ?
Sensory and memory
What is the temporal area for ?
Hearing (where the auditory goes through )
What is the frontal area for ?
Motor and judgement
What is the cerebrum made of ?
Gray mater
What is the cerebrum for ?
Thinking process
Brain/good sence
What is the cerebellum ?
The little brain
What does the hypothalamus do ?
Regulate body tempreature
What is the medulla oblongata do ?
Vital center
B/p HR ,resp
Where is the cerebral spinal fluid formed ?
Choroid plexus
Where does the cerebral spinal fluid circulates ?
The meninges
What are the mininges ?
Dura mater
Arachnoid space
Pita mater
The fluid circulates in the arachnoid space and is returned where in the brain ?
Cranial Venus sinuses
What is the purpose of the cerebral spinal fluid ?
- shock observer
- for nutrient to carry away waste from the brain cell
What’s the purpose of the spinal cord ?
Send message the through the body and transmit message to the brain
What are the two part of the central nervous system ?
Brain and spinal cord
How many pair if spinal nerves are their ?
31 pairs
What does the spinal nerve control ?
The PNS
things that are outside of control of the brain
What does the dendrite do ?
Recieve the impulses
Carry the impulses through the cell body down the axon through the gap(snapse ) to the next dendrite
What insulation is the axon coated with ?
Myelin
What transmit the electrical impulses that comes down to the dendrite , cell body axon and tries to get across to the next dendrite ?
Chemical neurotransmitter
What are the chemical neurotransmitters ?
Acetylcholine
Dopamine
Epinephrine
Norepinephrine
What does the parasympathetic nervous system do ?
Bring is back to normal
Like a parachute
What does the sympathetic system do ?
Fight or flight response
What is the fight or flight response do ?
Increase HR decrease peristalsis Open up bronchioles Shut down the bladder Dilate the pupils
is the autonomic nervous system voluntary or involuntary ?
Involuntary
What are reflexes ?
Involuntary response to stimuli
What is the patella reflex ?
Knee
What inactivate acetocyline ??
Choloriestarae
What causes muscle fatigue ?
Build up of lactic acid
What is the oxygen that’s stored in the muscle at all times ?
Myoglobin
What is the most abundant energy source ?
Glycogen or glucose
What is the oxygen in the RBC ?
Hemoglobin
What is synergistic muscle
Works together
What is antagonistic muscle ?
F
What happens when a muscle pulls on a bone
It shortens
What is muscle tone ?
Continuous muscle contraction
What is the joint capsule ?
Like a sleeve
What is the joint capsule lined with ?
Synovial membrane
What does the synovial membrane secrete ?
Synovial fluid
What is the purpose of the synovial fluid ?
To prevent wear and tear
Lubrication
What are the ends of the bones covered with ?
Articular cartilage
What is the miniscus , what do they do and prevent ?
Little disc
They help reduce heat
Prevent rubbing in each other
What are bursa ?
Jelly belly pillow
The bone slide Over the bursa instead of the bone
What is it called if the bursa gets inflamed ?
Bursitis
Where are suture joints found ?
In the head
What is the symphysis pubis ?
Pubic bone
Seperate during child birth
Where are the ball and socket joints?
Shoulder and joint (acetabulum )
Where is the hinge joint ?
Elbow and knee
Where is the pivot joint ?
Head and neck
What are the first too vertebrae called ?
Atlas and axis or the c1 & c2
What is the muscle fasia ?
Covering if the muscle
The white membrane
What is the periosteum ?
Covering of the bone
What does the episyseal disc on the bone do ?
Stops bone growth
When does the episyheal disc close/stop growing ?
Between 17-24
What do tendons do ?
Connect muscle to bone
What do ligament do ?
Connect bone to bone
What’s produce in the bone marrow ?
Red marrow Yellow marrow (fat)
What do red bone marrow produce ?
Red blood cell
White blood cells
Platelets
What are the chief minerals of the bone ?
Calcium and phropous (main ones )
Protein and vitamin D
Where are encapsulated nerve ending found ?
Dermis
What’s the largest bone in the body ?
Femur
What the largest bone in the upper body ?
Humerus
What part of the ear is equilibrium imbalance ?
Inner (semi circular canal )
What is the difference between abduction and addiction ?
Abduction is away from the body
Addiction is towards the body
What’s the purpose and muscle and muscle tone ?
Shape , posture and produce heat
What is acetabulum ?
The socket in the hip
What is the eustachian tube ?
(pharyngotympanic tube) connects the middle ear cavity with the nasopharynx.
What is the window of the eye that first allow light rays to enter ?
Cornea