Definitions
abdomen - The part of the body of a vertebrate containing the digestive organs.
adrenal gland - Either of a pair of complex endocrine glands situated near the kidney.
aorta - The main artery of the body, supplying oxygenated blood to the circulatory system.
appendages – A projecting part of an organism, with a distinct appearance or function.
arteries - Any of the muscular-walled tubes forming part of the circulation system by which
blood (mainly that which has been oxygenated) is conveyed from the heart to all
parts of the body
atria - The chambered muscular organ in vertebrates that pumps blood received from the
veins into the arteries.
bilateral symmetry - The property of being divisible into symmetrical halves on either side of a unique
plane.
diaphragm - A dome-shaped, muscular partition separating the thorax from the abdomen in
mammals
ductus arteriosus - A blood vessel in a fetus that bypasses pulmonary circulation by connecting the
pulmonary artery directly to the ascending aorta.
ears - The organ of hearing and balance in humans and other vertebrates.
elbow - The joint connecting the upper arm with the forearm.
esophagus - The part of the alimentary canal that connects the throat to the stomach.
Eustachian tubes - A narrow passage leading from the pharynx to the cavity of the middle ear
eyelids - Each of the upper and lower folds of skin that cover the eye when closed.
eyes – A pair of globular organs in the head through which people and vertebrate animals
see.
Fallopian tubes - A pair of tubes along which eggs travel from the ovaries to the uterus.
fetus - An unborn or unhatched offspring of a mammal.
foot - The lower extremity of the leg below the ankle.
forearm – The lower forelimb of an animal.
forelimb - Either of the front limbs of an animal.
genital tubercle - A body of tissue present in the development of the urinary and reproductive organs
hand – The part of an animals arm past the wrist.
head - The upper part of the human body, or the front or upper part of the body of an
animal, typically separated from the rest of the body by the
neck.
heart - A hollow muscular organ that pumps the blood through the circulatory system by
rhythmic contraction and dilation.
hind limb – The back limb.
hip - A projection of the pelvis and upper thighbone on each side of the body.
hoof - The horny part of the foot of an ungulate animal.
intestine - The lower part of the alimentary canal from the end of the stomach to the anus.
kidney - Each of a pair of organs in the abdominal cavity of mammals, birds, and reptiles, responsible for the filtration of urine.
leg - Each of the limbs on which a person or animal walks and stands.
lungs - The main organs of the respiratory system that have the function of transporting oxygen from the air into the blood and removing carbon dioxide from the blood.
mesentery - A fold of the peritoneum that attaches the stomach and other organs to the
posterior wall of the abdomen.
mouth – The opening on the lower part of the face.
neck - The part of an animal's body connecting the head to the rest of the body.
ovaries – The female reproductive organ.
pharynx - The membrane-lined cavity behind the nose and mouth, connecting them to the esophagus.
placenta - A flattened circular organ in the uterus of pregnant eutherian mammals, nourishing
and maintaining the fetus through the umbilical cord.
pulmonary arteries - The artery carrying blood from the right ventricle of the heart to the lungs for
oxygenation.
scrotal sac – A sac of skin containing the testicles.
shoulder - The upper joint of each of an animal’s front limbs.
skull - A bone framework enclosing the brain of a vertebrate; the skeleton of a person or animal's head.
stomach - The internal organ in which the first part of digestion occurs.
tail – The hindmost part of an animal.
testes – An organ that produces male reproductive gametes.
thalamus gland – A by-station from the sensory organs to the cerebral cortex sensory regions.
thigh - The part of the leg between the hip and the knee.
thorax - The part of the body of a mammal between the neck and the abdomen.
trachea – A tube that connects the pharynx and larynx to the lungs.
trunk – The main part of the body.
umbilical arteries - The umbilical artery is a paired artery (with one for each half of the body) that is
found in the abdominal and pelvic regions.
umbilical cord - A flexible cordlike structure containing blood vessels and attaching a human or other mammalian fetus to the placenta during gestation.
umbilical vein – A vein in the umbilical cord that returns nutrient blood from the placenta to the fetus.
upper arm – The upper forelimb of an animal.
ureters - The duct by which urine passes from the kidney to the bladder.
urinary bladder - A membranous sac for temporary retention of urine.
uterine horns - The points where the uterus and the uterine tubes meet.
uterus - The organ in the lower body of a woman or female mammal where offspring are conceived and in which they gestate before birth; the womb.
veins - Any of the muscular-walled tubes forming part of the circulation system by which blood (mainly that which has been oxygenated) is conveyed from all parts of the body to the heart)
ventricles - Each of the two main chambers of the heart, left and right.
wrist – The joint connecting the hand with the forearm.
adrenal gland - Either of a pair of complex endocrine glands situated near the kidney.
aorta - The main artery of the body, supplying oxygenated blood to the circulatory system.
appendages – A projecting part of an organism, with a distinct appearance or function.
arteries - Any of the muscular-walled tubes forming part of the circulation system by which
blood (mainly that which has been oxygenated) is conveyed from the heart to all
parts of the body
atria - The chambered muscular organ in vertebrates that pumps blood received from the
veins into the arteries.
bilateral symmetry - The property of being divisible into symmetrical halves on either side of a unique
plane.
diaphragm - A dome-shaped, muscular partition separating the thorax from the abdomen in
mammals
ductus arteriosus - A blood vessel in a fetus that bypasses pulmonary circulation by connecting the
pulmonary artery directly to the ascending aorta.
ears - The organ of hearing and balance in humans and other vertebrates.
elbow - The joint connecting the upper arm with the forearm.
esophagus - The part of the alimentary canal that connects the throat to the stomach.
Eustachian tubes - A narrow passage leading from the pharynx to the cavity of the middle ear
eyelids - Each of the upper and lower folds of skin that cover the eye when closed.
eyes – A pair of globular organs in the head through which people and vertebrate animals
see.
Fallopian tubes - A pair of tubes along which eggs travel from the ovaries to the uterus.
fetus - An unborn or unhatched offspring of a mammal.
foot - The lower extremity of the leg below the ankle.
forearm – The lower forelimb of an animal.
forelimb - Either of the front limbs of an animal.
genital tubercle - A body of tissue present in the development of the urinary and reproductive organs
hand – The part of an animals arm past the wrist.
head - The upper part of the human body, or the front or upper part of the body of an
animal, typically separated from the rest of the body by the
neck.
heart - A hollow muscular organ that pumps the blood through the circulatory system by
rhythmic contraction and dilation.
hind limb – The back limb.
hip - A projection of the pelvis and upper thighbone on each side of the body.
hoof - The horny part of the foot of an ungulate animal.
intestine - The lower part of the alimentary canal from the end of the stomach to the anus.
kidney - Each of a pair of organs in the abdominal cavity of mammals, birds, and reptiles, responsible for the filtration of urine.
leg - Each of the limbs on which a person or animal walks and stands.
lungs - The main organs of the respiratory system that have the function of transporting oxygen from the air into the blood and removing carbon dioxide from the blood.
mesentery - A fold of the peritoneum that attaches the stomach and other organs to the
posterior wall of the abdomen.
mouth – The opening on the lower part of the face.
neck - The part of an animal's body connecting the head to the rest of the body.
ovaries – The female reproductive organ.
pharynx - The membrane-lined cavity behind the nose and mouth, connecting them to the esophagus.
placenta - A flattened circular organ in the uterus of pregnant eutherian mammals, nourishing
and maintaining the fetus through the umbilical cord.
pulmonary arteries - The artery carrying blood from the right ventricle of the heart to the lungs for
oxygenation.
scrotal sac – A sac of skin containing the testicles.
shoulder - The upper joint of each of an animal’s front limbs.
skull - A bone framework enclosing the brain of a vertebrate; the skeleton of a person or animal's head.
stomach - The internal organ in which the first part of digestion occurs.
tail – The hindmost part of an animal.
testes – An organ that produces male reproductive gametes.
thalamus gland – A by-station from the sensory organs to the cerebral cortex sensory regions.
thigh - The part of the leg between the hip and the knee.
thorax - The part of the body of a mammal between the neck and the abdomen.
trachea – A tube that connects the pharynx and larynx to the lungs.
trunk – The main part of the body.
umbilical arteries - The umbilical artery is a paired artery (with one for each half of the body) that is
found in the abdominal and pelvic regions.
umbilical cord - A flexible cordlike structure containing blood vessels and attaching a human or other mammalian fetus to the placenta during gestation.
umbilical vein – A vein in the umbilical cord that returns nutrient blood from the placenta to the fetus.
upper arm – The upper forelimb of an animal.
ureters - The duct by which urine passes from the kidney to the bladder.
urinary bladder - A membranous sac for temporary retention of urine.
uterine horns - The points where the uterus and the uterine tubes meet.
uterus - The organ in the lower body of a woman or female mammal where offspring are conceived and in which they gestate before birth; the womb.
veins - Any of the muscular-walled tubes forming part of the circulation system by which blood (mainly that which has been oxygenated) is conveyed from all parts of the body to the heart)
ventricles - Each of the two main chambers of the heart, left and right.
wrist – The joint connecting the hand with the forearm.