Bio 101L - Fetal Pig Parts

vagina

A muscular, elastic passageway that extends from the uterus to the outside of the body

bulbourethral glands

A pair of exocrine glands near the male urethra. They secrete fluid into the urethra.

bile duct

A tube that carries bile from the liver and gallbladder to the intestine

large intestine (colon)

Absorbs water, vitamins and minerals from gut content

urogenital sinus/chamber

point where the vagina joins with the urethra

thyroid

posterior to the larynx, secretes hormones for cellular metabolism and the maintenance of blood calcium levels

proximal

inside but more towards the middle

epiglottis

keeps the respiratory and digestive systems separate

epitrichium

layer of epidermis sloughed off as more is produced, filmy white layer of waxy material peeling of skin surface

scrotum

male reproductive function, where the testicle is

peritoneum

membranous lining of the abdominal cavity

cervix

mouth of the womb

kidney

organ that removes urea, excess water, and other waste products from the blood and passes them to the ureter

adrenal gland

part of the endocrine system, secretes hormones responsible for regulating sodium levels, sex hormones, and stress-response hormones

epididymis

A long, coiled duct on the outside of the testis in which sperm mature.

prostate gland

A gland in males that contributes to the seminal fluid.

heart

A hollow, muscular organ that pumps blood throughout the body.

ureter

A duct leading from the kidney to the urinary bladder.

abdominal cavity

Contains stomach, intestines, spleen, and liver, and other organs, lower chest cavity

small intestine

Digestive organ where most chemical digestion and absorption of food takes place

bronchus

Either of the two subdivisions of the trachea that conveys air into the lungs.

oviduct

Fallopian tube; tube that carries eggs from an ovary to the uterus

uterus

Female organ of reproduction used to house the developing fetus.

ventricles

Lower chambers of the heart, larger and more pointed

lungs

Main organs of the respiratory system

penis

Male reproductive organ

spleen

Organ near the stomach that produces, stores, and eliminates blood cells, part of the immune system

pericardium

Translucent membrane surrounding the heart

pericardial cavity

cavity that contains the heart

pleural cavities

cavity that contains the lungs

caecum

a pouch connected to the junction of the small and large intestines.

umbilical cord

a tube containing the blood vessels connecting the fetus and placenta

nipple

along milk lines in female pigs

distal

anything more towards the outside of the pig

gubernaculum

band of connective tissue that attaches testes to scrotum

glottis

below and protected by the epiglottis, the opening the respiratory system

sternum

breast plate, protects the chest

systemic aorta

carries blood from the left ventricle to the body

pulmonary arteries/veins

carry deoxygenated blood out of/ oxygenated blood into the ventricles and into the lungs

pharynx

connects the nose and mouth to the esophagus, throat, part of the respiratory and digestive system

ductus arteriosus

connects the pulmonary artery to the aorta, bypassing the lungs in a fetal animal, closes with its first breath

foramen ovale

connects the two atria in the fetal heart

thoracic cavity

contains heart and lungs, upper chest cavity

penile urethra

continues through the penis to the urogenital opening

aortic arch

curve of the aorta

umbilical vein

delivers oxygenated blood from the placenta to the fetus, contained within the umbilical cord

pancreas

digestive and endocrine functions so it empties into the small intestine, found between the stomach and duodenum, held in place by the mesentery membrane

postcaval vein

drains the lower part of the body

precaval vein

drains the upper part of the body

male urogenital opening

exit of the male urogenital system, small mound just posterior to umbilical cord

coronary artery/vein

found in the boundary between ventricles, transports blood into/out of the heart

meconium

greenish-black material that fills the fetal digestive system (stomach, specifically), composed of sloughed-off cells and amniotic fluid

liver

produces bile and processes nutrient-rich blood from the intestines, large brownish-red posterior to diaphragm

bronchioles

progressively smaller tubular branches of the airways, leading from the alveoli to the bronchus and into each lung

urogenital papilla

reproductive function, covers urogenital opening/orifice for female, ventral to anus

pyloric sphincter

ring of muscle that guards the opening between the stomach and the intestines, prevents backflow

pelvic urethra

runs from the urinary bladder to the penis

ventral

side of pig that faces the ground (belly/chest)

dorsal

side of the pig that faces the sky (back)

alveoli

small terminal sacs where oxygen and carbon dioxide exchange occurs.

thymus

spongy tissue anterior to the heart, part of the immune system, makes white blood cells

gall bladder

stores bile and sends it to the small intestine

urinary bladder

stores urine

anus

terminal end or opening of the digestive tract to the outside of the body

rectum

terminates the large intestine

inguinal canal

the channel through which the testis descends into the scrotum in the male

vas deferens

the duct that conveys sperm from the testicle to the urethra.

esophagus

the first part of the digestive system, tube to carry food from mouth to stomach

stomach

the large muscular sac that continues the mechanical and chemical digestion of food

testis

the male reproductive organ that produces sperm and hormones

urethra

the tube that carries urine from the bladder to the outside of the body, not functional until after birth

atria

the two upper chambers of the heart, smaller and thinner-walled

hepatic portal vein

the vein that drains the small intestine and delivers blood to the liver

dura mater

tough connective tissue that attaches the brain to the skull and seals the rest of the nervous system

cranial

towards the head

caudal

towards the tail

larynx

voicebox; passageway for air moving from pharynx to trachea; contains vocal cords

horn of the uterus

where each oviduct merges

trachea

windpipe, connects Larynx to bronchi