lab 8+9: pig, kidney, sheep, prego Flashcards
anterior
toward head
posterior
toward tail
dorsal
backside
ventral
bellyside
midline
toward middle
lateral
toward side
proximal
near trunk
distal
farther from trunk
superficial
lying on top or the surface
deep
lying below or under
scalpel
initial incisions, removing skin
scissors
further cutting tissue
blunt probe
tracing tubes or separating tissue
forceps
moving tissue
teasing needle
pushing tissue
sagittal section
left and right halves
frontal section
dorsal and ventral halves
transverse sections
anterior and posterior halves
trunk
thoracic, lumbar, sacral
epitrichium
outer embryonic skin
nictating membrane
inside corner third membrane of the eye
auricles
external ears
snout
bone, cartilage, connective tissue
umbilical cord
connects placenta on uterine wall. has two red arteries. one large blue vein
allantoic duct
fourth vessel in umbilical cord, collapsed
blood in vein
carries nutrients and oxygen from mom to fetus
blood in arteries
waste and CO2 from fetus to mom
male’s urogenital opening
behind umbilical cord, presence of swelling on ab’s posterior, scrotum has testes
penis
large, tubular under skin posterior to urogenital opening
female’s urogenital opening
ventral (belly) to anus
genital papilla
small fleshy piece of tissue from urogenital opening
ungulates
hoofed animals
unguligrade locomotion
tips of digits walking
diaphragm
tissue sheet separating thoracic and abdominopelvic
umbilical vein
dark tube from cord to liver
endocrine glands
thymus and thyroid
thymus
whitish, 2 lobes, in neck, upper, covers the heart a bit, extends along trachea to larynx
thyroid gland
beneath thymus in neck, on trachea, small reddish oval mass, more solid than thymus. for metabolism, growth, development
pharynx
posterior to soft palate
trachea
tube with cartilaginous rings
esophagus
backside/dorsal to trachea
larynx
has glottis as opening, has vocal cord
epiglottis
white lap covering larynx/glottis when swallowing
liver
largest, brownish, four lobed, produces bile, stable composition of blood
gallbladder
lift right central lobe of liver, stores bile from liver
common bile duct
cystic duct (gallbladder) and hepatic duct (liver)
stomach
bean organ, dorsal to liver
meconium
amniotic fluid, epithelial cells from digestive tract, hair
rugae
folds inside stomach lining
cardiac/pyloric sphincters
2 muscular rings, controls food involuntary smooth muscle tissue
spleen
elongated, dark red, filters blood, immune function
small intestine
duodenum, jejunem, ileum
mesentaries
coils of small intestine, 5 times length of the pig
villi
absorbs nutrients
cecum
pouch
ileocecal valve
muscular sphincter, ileum and large intestine
anal sphincter
final muscle in alimentary canal
bronchi
2 major branches to lungs, the rings prevent from collapsing
pericardial sac
holds heart
right lung
four lobes
left lung
2/3 lobes
alveoli
air sacs of blood capillaries
pulmonary circuit
blood flow to and from the lungs
systemic circuit
blood flow to and from the rest of the body
coronary artery
supply blood to heart
rods
numerous, sensitive to light, night vision
cones
less, resolution, color (in retina, fovea centralis)
cornea
front, transparent, allows light in
optic nerve
back
sclera
white, tough outer layer
vitreous humor
thick jelly inside, holds retina and shape in place
retina
pale, loose tissue, makes third tunic, has the rods and cones
blind spot
retina’s nerve fibers join optic nerve, retinal vessels
choroid coat
black, under retina
tapetum lucidum
shiny, green, reflects light back into retina
lens
hard, oval, focuses light on retina, held by suspensory ligament, attached to ciliary body
iris
surrounds pupil, iris controls light reaching lens
aqueous humor
behind cornea and pupil
cell body
cytoplasm and nucleus
dendrites
transmits nervous impulses to cell body
axon
transmits impulse from cell body to another neuron or fiber
glial cell
cells outside neurons, supports/protects neurons
urea
from amino acids in liver, filtered from blood in kidneys, regulates water and salt balance
kidney
membrane is peritoneum, has ureter
hilus
depression, where artery enters, ureters and renal vein leaves
urinary bladder
lift to find the urethra
urethra
urine passes from bladder to outside
urogenital sinus
urethra and vagina
labia
sides of urogenital sinus
clitoris
erectile tissue of urogenital sinus
urogenital sinus
passage for urethra and vagina
cervix
entrance of uterus
uterine horns
where fetus develops
oviducts to ovaries
gonads, small, yellow, site of egg production, estrogen+progesterone
broad ligament
sheet of mesentary/connective tissue, supports ovaries, oviducts, uterine horns
round ligament
supports ovaries, crossing broad ligament
testes
gonads, sperm production, testosterone
scrotum
bulbous structures inside
membrane of scrotum
tunica vaginalis
gubernaculum
homologous to round ligament, tough white cord
epididymis
tight coiled tube along one side of testis, stores sperm until ejaculation
spermatic cord
slender, elongated structure in each testis, inguinal canal when tugged on
vas deferens
spermatic cord of artery, of vein, of nerve
ejaculation
sperm in epididymis to vas deferens to urethra to outside
prostate gland
between seminal vesicles
bulbourethral gland
two on side of where penis and urethra meet
chorion
outer membrane of uterus
allantois
inner membrane of uterus
amnion
thin, fluid sac around fetus
nephron
functional unit of kidney
cortex
one region of kidney, outer
medulla
another region of kidney
renal pelvis
last region of kidney