mid term Flashcards
glands that aren’t included in the endocrine system
exocrine glands
luteinizing hormone (LH) stimulates
maturation of ovarian follicles and triggers ovulation
what is not stimulated by anterior pituitary gland
ADH
oxytocin
too much insulin in the blood
increases blood glucose
the posterior pituitary gland and hypothalamus
release two hormones & produce RH and IH
in addition to producing thyroid hormones, the thyroid gland also secretes
calcitonin
adrenal medulla produces hormones that are
helpful in stress and fight or flight
pineal gland produces several hormones in small quantities but most significant hormone is
melatonin
what plays a critical role in the body’s defenses against infections
thymus
two primary functions of the blood are
transportation and protection
formed elements of blood
RBC (erythrocytes)
WBC (leukocytes)
platelets (thrombocytes)
what are agranulocytes
macrophage
lymphocyte
without adequate _____ in the diet, the body cannot manufacture enough hemoglobin
iron
necessary for blood clotting
prothrombin
thrombin
fibrinogen
fibrin
platelets
function of WBCs
defend the body from invading microorganisms
blood clot that is stationary
thrombus
antibody is
made by the body
reacts with antigen
causes antigens to agglutinate
blood type considered universal recipient
AB +
erythroblastosis fetalis is now avoidable by treating with
RhoGAM
what blood type is considered universal donor
O-
a blood clot that moves
embolus
heart sounds are easily heard by placing a stethoscope over the
apex
valve located between RA & RV
tricuspid AV valve
blood rich in oxygen returns from lungs and enters LA of heart through
pulmonary veins
heart block is treated by
artificial pacemaker
outermost layer of the arteries and veins
tunica adentiva (externa)
blood pressure gradient is
keeping blood flowing
stroke volume refers to
blood EJECTED from ventricles
structural feature not present in arteries but present in veins
valves
what is true about both lymphatic and blood capillaries
both vessels are microscopic and formed sheets of endothelium
spleen
largest lymphoid organ
lymph nodes are responsible for
WBC formation and filtration
the thymus is
largest at puberty & source of lymphocytes before birth
active immunity occurs when
vaccination confers immunity
example of non specific immunity
skin & tears & mucus
in general, antibodies produce _____ immunity
humoral
endocrine system consists of glands that
release chemicals in blood
second messengers are important in the functioning of
non steroid hormones
non steroid hormones have hormone receptors in the
cell membrane
non steroid hormones can cause
formation of cAMP
steroid hormones have hormone receptors in the
nucleus
steroid hormones can cause
protein synthesis
hormones can
use positive feedback & negative feedback
the anterior pituitary gland is called
adenohypophysis
TSH
secreted by adenohypophysis & stimulates release of thyroid hormone
posterior pituitary gland secretes
oxytocin & ADH
FSH
stimulates ovarian follicles to develop
oxytocin
released by posterior pituitary gland
stimulates uterine contraction
uses positive feedback
ADH
increases amount of water reabsorbed by the kidneys
thyroid gland
is found in the neck
thyroid gland produces
T3
T4
calcitonin
calcitonin causes
decrease in concentration of calcium
parathyroid hormone
increases concentration of calcium
opposite of calcitonin
aldosterone
mineralcorticoid
increase sodium
aldosterone effects mainly the
kidneys
cortisol
gluconeogensis
glucocorticoid
made in middle of adrenal cortex
anti immunity effect
androgens which are similar to testosterone
secreted by inner zone of adrenal cortex
epinephrine
released in response to stress
glucagon
accelerates liver glyconeogenesis
insulin
beta cell for pancreas
opposite effect of glucagon
decreases blood glucose
a decrease in insulin production
usually causes type 1 diabetes
ovary secretes
estrogen
testosterone is
interstitial cells of testes
masculinizing hormone
thymus gland
produces thymosin
the placenta releases
chorianic gonadotropins
progesterone
estrogen
pineal gland is
sometimes called “third eye”
non steroid hormones can be made of
proteins
what are characteristics of non steroid hormones
can use cAMP
second messenger
attaches to cell membrane
characteristic of steroid hormone
in cell nucleus
causes protein synthesis
can pass thru cell membrane
function of lutenizing hormone
stimulates growth of an egg follicle in ovary
causes ovulation
causes teste to secrets testosterone
lactogenic hormone is another name for
prolactin
in order for T4 to be produced diet must contain
iodine
the hormone has opposite function of calcitonin
parathyroid
aldosterone has an impact on which substance
potassium and sodium
hormone that seems to influence how fat is metabolized in the body
leptin
posterior pituitary gland is also called
neurohypophysis
diabetes insipidus is caused by hyposecretion of
aldosterone