Fetus Pig Biology

Hard Palate

forms the bony front portion of the roof of the mouth and helps with chewing and speaking.

Soft Palate

the flexible back part of the roof of the mouth that blocks the nasal passages during swallowing.

Epiglottis

a flap of tissue that covers the trachea during swallowing to prevent food from entering the airway.

Tongue

aids in tasting, chewing, swallowing, and speaking by manipulating food and helping form words.

Larynx (Voice Box)

produces sound, routes air and food into the proper channels, and protects the lower airways during swallowing.

Thyroid

regulates metabolism, growth, and energy use by releasing hormones like thyroxine (T4) and triiodothyronine (T3).

Right Ventricle

It pumps deoxygenated blood to the lungs through the pulmonary artery.

Left Atrium

Received oxygenated blood from the lungs.

Right Atrium

Received deoxygenated blood from the body.

Left Ventricle

Pump oxygenated blood to the body.

Lungs

Transport oxygen and remove CO2, gas exchange.

Diaphragm

Involuntary muscle separating the thoracic cavity and the abdominal cavity. Aids in respiration.

Trachea

the windpipe that conducts air from the larynx to the bronchi, allowing airflow to the lungs.

Pulmonary Trunk

carries deoxygenated blood from the right ventricle to the lungs via the pulmonary arteries.

Coronary Vessels

Supply oxygenated blood to the heart muscle itself, ensuring its proper function.

Descending Aorta

Carries oxygenated blood from the heart to the lower regions of the body, including the abdomen, pelvis, and legs.

Liver

Helps maintain blood sugar levels by breaking down glycogen into glucose or taking up glucose and storing it as glycogen.

Stomach

Churning and breaking down food, contains hydrochloric acid.

Small Intestine

Contains duodenum and ileum.

Spleen

Removes old or damaged cells, fights infections.

Pancreas

Regulates blood sugar level by producing insulin or glucagon.

Large Intestine

Stores undigested food and major water absorption.

Gallbladder

Stores and concentrates bile produced by the liver until it's needed for digestion.

Bile Duct

Transports bile from the gallbladder and liver to the small intestine (duodenum).

Cardiac Sphincter

Regulates food passage from the esophagus to the stomach.

Pyloric Sphincter

Regulates food passage from the stomach to the small intestine.

Mesentery

Anchors the intestines to the abdominal wall, holding blood vessels, lymphatics, and nerves that supply the digestive organs.

Kidney

Filters blood to remove waste and excess substances, regulates blood pressure and electrolyte balance, and produces urine.

Renal Vessels

brings unfiltered blood to the kidneys, while the renal vein carries the filtered blood away from the kidneys.

Ureter

Transports urine from the kidneys to the bladder through muscular contractions called peristalsis.

Urinary Bladder

Stores urine until it is excreted from the body.

Uterine Horn (Fallopian Tube)

Transports eggs from the ovaries to the uterus and is typically where fertilization occurs.

Ovaries

Produce eggs and secrete hormones like estrogen and progesterone.

Umbilical Artery

In a fetus, it carries deoxygenated blood from the fetus to the placenta.

Testis

Produces sperm and secretes the hormone testosterone.

Rectum (Descending Colon)

Stores solid waste until it is eliminated through the anus.

Superior Vena Cava

Returns deoxygenated blood from the upper body back to the right atrium.

Inferior Vena Cava

Returns deoxygenated blood from the lower body to the right atrium.

Pulmonary Trunk

Sends deoxygenated blood to the lungs.

Right Ventricle

Pumps deoxygenated blood to the lungs.

Left Ventricle

Pumps oxygenated blood to the body.

Left Atrium

Receives oxygenated blood from the lungs.