my test 3 Flashcards
structure in the eye produces the aqueous humor and helps modulate the shape of the lens
ciliary body
describe congential heart defect that would result in mixing of oxygen rich and oxygen poor blood if left untreated
atrial septal defect
two stimuli that can activate a noiciceptor
pain
chemicals
real function of the spleen
removes waste and regulates blood cells
auditory ossicle articulates directly with the oval window
stapes
location where you would expect to find a baroreceptor
carotid sinus
specific type of leukocyte produces antibodies
b cell
blood flow through capillary beds can be controlled
constriction of arterioles
one potential cause of anemia
low iron content in the blood
gland requires iodine to synthesize its hormones
thyroid gland
ex of an elastic artery
aorta
where in body is insulin produced
islets of langerhans in the pancreas by beta cells
specific structure in the orbit that produces tears
lacrimal gland
valve that prevents backflow of blood from the left ventricle into the left atrium
bicuspid valve
cranial nerves that innervates taste buds
facial nerve
vagus nerve
tastants must be dissolved in saliva before they can stimulate
receptors on gustatory cells
bitter receptors are involved in trigerring immune responses in areas like
trachea and lungs
taste is complex perception that integrates
olfactory
tactile
thermal
gustatory stimuli
gustatory cells are epithelial cells that release
chemical signals onto sensory neurons
thermoreceptors are great examples of
phasic receptors
patient is suffering from heart attack it is common to perceive pain in the left arm
multiple first order neurons converging on the same second order neurons
structure for the primary pacemaker of the heart
sinoatrial sa node
adaptive phasic receptor consists of coiled branching dendrites surrounded by a fibrous capsule and modified swann cells, enabling it to respond to light touch, movement and vibration
tactile meissners corpuscle
platelets are formed
through fragmentation of megakaryocytes
adrenal glands produce each of the following hormones
testosterone
epinephrine
aldosterone
cortisol
siginificatn processing of visual info occurs within the
retina itself
posterior to the lens the eye is filled with a gelatinous fluid called the
vitreous humor
no photoreceptors present at the
optic disc of the retina
most of the eys anterior surface is covered by the
bulbar ocular conjunctiva
hypophyseal portal system carries neurohormones from the hypothalamus to their targets in the
anterior lobe of the pituitary
the tunica intima is composed of
simple squamous epithelium
leukocyte is the most abundant in the blood
neutrophil
expect to find a network of fenestrated capillaries
choroid plexus
small intestine
anterior pituitary
kidney
ampullary crests and their associated ampullary cupulae can be found in the
semicurcular ducts
spiral organ of corti can be found
within the cochlear duct of the cochlea
spiral organ of corti basilar membrane is more sensitive to
high frequency sounds near the oval window
spiral organ of corti initiates a signal that is processed by
the auditory cortices on both sides of the brain
organ of corti hair cells possess
sterocillia which are bent against the tectorial membrane
which erythrocyte surface antigen is involved in erythroblastosis fetalis
Rh
sensation regardless of the initial stimulus type, all receptors must
convert their stimuli into electrical signals
sensation receptors for general senses are found
widespread throughout the body
sensation receptor typically responds only to certain types of
stimuli
special sensation convey info to the brain utilizing
cranial nerves
which of the following is caused by a leaky heart valve that allows for backflow of blood
heart murmur
following return lymph to the general circulation by draining it into the subclavian veins
lymphatic ducts
lymph nodes contain germinal centers in the cortex for the proliferation of
b cells
lymph nodes are common sites for lymphocytes to
encounter pathogens
lymph nodes are concentrated in
cervical, axillary, and inguinal regions
lymph nodes house macrophages that
help remove cellular debris from the lymph
pulmonary arteries carry blood to the lungs from the
right ventricle
olfactory sensory neurons send axons through
cribriform foramina to the olfactory bulbs of the brain
at any given time, approximately 65% of the bodys blood can be found within
systemic veins and venules
where are t cells tested for immunocompetence and self tolerance before being released into the circulation
thymus
muscle contracts to help close the eyelids
orbicularis oculi
during central adaption interneurons along the
sensory pathway are inhibited
papillary muscles and chordae tendineae are directly associated with the
tricuspid and bicuspid atrioventricular valves
release hormones that help to regulate blood calcium levels
kidneys
thryoid gland
parathyroid glands
anteriory pituitary secretes
Prolactin
growth hormone
follicle stimulating hormone
thyroid stimulating hromone
which cells in the retina are able to detect photons in low light environments
rods
synthesize of hb is dependent on
iron
hb assists in transporting carbon dioxide in the
blood
one hB can bind up to
4 molecules of oxygen
hb is the most abudndent protein in
erythrocytes
myocardium of the heart consists of muscle fibers connected by
intercalated discs
basilar artery connects the
vertebral arteries to the cerebral arterial circle
order of structures that light passes through as it enters the eye
cornea
pupil
lens
retina
internal jugular and vertebral veins collect oxygen poor blood from
dural sinuses around the brain
hormone is synthesized in follicles full of colloid
thyroxine TX/T4
