Fetal Pig Dissection: Anatomy and Physiology

External nares

Allow for air to travel in and out of the body and can be used for smell

Eye

Vision

Umbilical cord

Connects fetus to placenta

Mammary Papillae

Produce milk for babies

Genital papilla

Protects the opening to the urogenital tract

Superficial pectoral

Stabilizes front leg

Rectus abdominis

Maintains posture as well as supporting the organs in the abdomen

External Oblique Muscles

Truck rotation and compresses the abdominal cavity

Latissimus Dorsi

Shoulder extension

Biceps Femoris

Knee flexion and extension of the hip

Thyroid

Regulates growth, development, and metabolism

Thymus

Produces T-cells

Pericardium

Protective sac surrounding the heart

Atria

Receive blood

Ventricles

Pump blood

Coronary artery

Supplies oxygenated blood to the heart

Aortic arch

Directs oxygenated blood to major arteries from the left ventricle

Right common carotid artery

Supplies oxygenated blood to the right side of the head

Left common carotid artery

Supplies oxygenated blood to the left side of the head

Descending aorta

Supplies oxygenated blood to the lower part of the body

Superior Vena cava

Moves blood from the upper part of the body to the right atrium

Subclavian veins

Move deoxygenated blood from the arm to the heart

Right atrium

Takes deoxygenated blood from the vena cava, sending it to the right ventricle

Left atrium

Takes oxygenated blood from the lungs, sending it to the left ventricle

Right ventricle

Pumps deoxygenated blood to the lungs

Left ventricle

Pumps oxygenated blood to the body

Tricuspid

Prevents backflow of blood into the right atrium and right ventricle

Aortic semilunar

Prevents backflow of blood into the left ventricle

Trachea

connects the larynx to the bronchi

Larynx

Houses vocal cords

Bronchi

direct air into the lungs

Diaphragm

breathing

Liver

produces bile

Gall bladder

stores and releases bile

Stomach

digests food

Spleen

filters blood

Small intestine

main site of nutrient absorption

Large intestine

absorbs water and minerals

Rectum

stores feces before elimination

Kidney

Filters waste and excess water.

Ureters

Tubes that transport urine.

Urinary Bladder

Stores urine.

Uterine horns

Embryos implant and develop.

Ovary

Produces egg.

Genital papilla

Distinguishes females from males.

Diaphragm

Inhalation and exhalation.

Umbilical arteries

Carry deoxygenated blood and waste products from fetus to placenta.

Inferior vena cava

Carries oxygenated blood from lower body to heart.