Anatomy Flashcards
pyrexia
fever
thrombophlebitis
clot formation in the vein
cytoskeleton
provides shape and support to cells
cilia
hair-like structure found on the surface of some cells (such as those in the respiratory tract and fallopian tubes), that beat rhythmically and create a wave-like motion to move substances along passageways in the body.
villi
small finger-like projections (folds) found in the wall of the small intestine. These folds increase the surface area of the small intestine which makes it easier to absorb nutrients.
flagella
whip-like tails found on certain cells that create a rotation motion to propel the cell forward. For example, some bacteria use flagella to propel themselves around.
immunoglobulin
antibodies; essential for identifying and neutralizing pathogens
cytokines
signaling molecules that facilitate communication between cells in the immune response
antigens
molecules that trigger an immune response; they are what antibodies bind to.
ligaments
connect bones to other bones; Ligaments connect like to like
tendons
attach muscle to bone; tendons connect two types
femur
longest bone in the body, found in the leg
cirrhosis
chronic liver disorder (jaundice, abdominal pain, anemia, mental confusion) ; can be caused by hepatitis or long-term alcohol abuse
diverticulitis
acute or chronic condition affecting the colon
smoking is a major risk factor for:
atherosclerosis
coronary
refers specifically to the arteries and veins that supply blood to the heart muscle itself
circulatory
pertains to the entire cardiovascular system, including the heart, blood vessels, and the blood that circulates throughout the body.
describe SA node
located in the wall of the right atrium, it initiates the electrical signal for the heartbeat and triggers the contraction of the atria.
describe AV node (2nd)
located in the wall of the right atrium, it receives the electrical signal from the SA node and transmits it to the ventricles.
bundle of His (3)
transmits the electrical signal from the AV node to the ventricles
Purkinje fibers (4)
transmit the electrical signal throughout the ventricles and initiates ventricular contraction
the contraction of the ventricles:
pumps blood out of the heart and into circulation
left (to the body)
systemic circulation
right side to the lungs
pulmonary circulation
CSF fluid is produced by:
the brain; its purpose is to provide cushion and support to the brain and spinal cord
hemoglobin A1C
measures average blood sugar levels over the past 2-3 months
normal hematocrit values:
men: 41-52%; women: 36-46%
CRP
protein that increases in response int inflammation
Presbyopia
Age-related condition; decreased ability to focus on close objects
hyperopia
farsightedness; presents earlier in life
astigmatism
curvature defect of the eye causing blurred or distorted vision at any distance
connective tissue
group of tissues in the human body that are characterized by their ability to support, connect, and separate other tissues
examples of connective tissue?
adipose tissue (fat); tendons, ligaments, cartilage, bones, & blood (a liquid connective tissue)
Grave’s disease
an autoimmune condition that overstimulates the thyroid gland, leading to hyperthyroidism. Sx include rapid heartbeat, weight loss, eye issues.
Addison’s disease
an endocrine disorder where the adrenal glands do not produce enough hormones, mainly insufficient cortisol and aldosterone. This leads to symptoms like fatigue, low BP, hyperpigmentation
hemostasis
stop blood from flowing
describe vascular phase of hemostasis (1)
injury causes the blood vessel to constrict
describe platelet phase of hemostasis (2)
a temporary platelet plug is formed
describe coagulation phase of hemostasis (3)
a temporary platelet plug is converted to a stable fibrin clot via the coagulation cascade
describe the fibrin clot remodeling of hemostasis (4)
the fibrin clot is remodeled, eventually leading to the breakdown/removal of the clot (fibrinolysis)
pandemic
widespread outbreak of a disease that affects a large number of people over a large area, often across multiple countries or continents
endemic
constantly present within a particular population or geographic area
epidemic
outbreak of a disease that affects a larger number of people than is typical for that particular disease in a specific population or geographic area
lysosome
“cleaning crew” that contain digestive enzymes
mitochondria
“powerhouse” of the cell; responsible for generating ATP through cellular respiration. The cell uses the ATP the mitochondria creates for energy.
ribosome
assembles proteins;
golgi apparatus
like a “post office” of the cell, modifying, sorting, and packaging proteins for delivery to their correct destinations within the cell or outside of it.
vitiligo
loss of pigment of color in patches of skin
Blood pressure is the highest closest to the heart in the ___ and lowest furthest from the heart in the ___.
Arteries; veins
What is the order of the highest to lowest BP?
- Heart; 2. Aorta (largest artery); 3. Arteries; 4. Arterioles; 5. Capillaries; 6. Venules; 7. Veins; 8. Superior and inferior vena cava (largest veins)