Lab Exam 3 Flashcards
lines internal cavities, the heart, and all the blood vessels. It also lines parts of the urinary, respiratory, and male reproductive tracts.
simple squamous epithelium
lining of lungs, air sacs, blood vessels, and protects
what is the epidermis made of?
stratified squamous epithelium
found in tubules of the kidney and in the ducts of many glands, where it has a protective function. Also occurs in the secretory portions of some glands including the ovaries.
simple cuboidal epithelium
lining of kidney tubules, carious glands, absorbs molecules
lines the digestive tract from the stomach to the anus, protects, secretes, and allows absorption of nutrients.
nucleus near the base
lining of uterus
simple columnar epithelium
found in the trachea
sweeps impurities toward the throat
pseudostratified ciliated columnar epithelium
what is the skin, lining of mouth, throat, anal canal, and vagina out of?
stratified squamous
contains many collagenous fibers packed closely together, as in tendons, which connect muscles to bones, and in ligaments, which connect bones to other bones at joints.
dense fibrous connective tissue
has space between components, supports epithelium, and also many internal organs, such as muscles, blood vessels, and nerves. Its loose construction allows organs to freely move.
loose fibrous connective tissue
occurs beneath skin and most epithelial layers
- has cells in lacunae (chondrocyte within lacunae)
- occurs in nose and walls of respiratory passages; at ends of bones, including ribs
- functions in support and protection
hyaline cartilage
what kind of cells are found in hyaline cartilage?
chondrocytes
Which type of muscle tissue has multiple nuclei?
Which one is branched?
Skeletal
Cardiac
the biceps have ______ origins and the triceps have ______
2, 3
in long bone, what part contains red bone marrow? and which part contains yellow marrow (for fat storage) ?
epiphysis, diaphysis
layer of cartilage that articulates with another bone; decreases friction
hyaline cartilage
what is the outer most covering of bone, continuous with the ligaments and tendons that anchor bones, allows blood vessels to enter the bone and service its cells
periosteum
how many true ribs are there?
false ribs?
floating ribs?
7
3
1 all paired
muscles work in ___________ pairs
antagonistic pairs
the bone that is not articulated with any other bone, helps with swallowing
hyoid bone
what are the first two vertebral bones?
atlas and then axis
what bones make up the pelvic girdle?
two paired coxal bones. each consists of the ilium (superior), the pubis and ischium
in mammals, the yolk is evenly dispersed but in birds and frogs, the yolk is divided into what two poles?
animal pole (where division occurs) and the vegateal pole. This is called holoblastic cleavage
characterized by complete cleavage that divides the whole egg into distinct and separate blastomeres
holoblastic
characterized by incomplete cleavage as a result of the presence of a mass of yolk material
meroblastic
in the biuret test what does purple and pink mean?
PURPLE-proteins are present no digestion occurred
PINK- polypeptides are present, digestion occurred (when pepsin and HCL are together bright pink, pepsin alone slightly pink)
Blue- no proteins or polypeptides are present
pepsin does not work efficiently without ________
HCL
if fat is digested, the fatty acids will cause the pH to go down and cause the liquid to turn ________
yellow. red is neutral and bright pink is basic
turns yellow only in the presence of lipid, lipase, and bile salts.
lipids and lipase only causes the liquid to be slightly pink
when testing for starch, the water will turn ________ if the starch is digested and _________ if the starch is still present with idodine
orange/brown (in the presence of amylase)
blue/black (when starch is present, if amylase is boiled, and with pepsin)
the test used for testing the presence of sugars (maltose) what are the color changes with increasing sugar content?
Benedict’s test.
blue — green—orange— red
