Pig Dissection Anatomy Final

Which structure serves as a shunt to bypass the lungs, connecting the pulmonary trunk directly to the aortic arch?

Ductus arteriosus

Which of these vessels in the fetal pig carries oxygenated blood from the placenta to the fetus?

Umbilical vein

Which structure is found in female fetal pigs but NOT in males, typically located near the urogenital opening?

Genital papilla

What is the primary function of the gallbladder?

Storing bile

In the fetal pig heart, blood flows from the right atrium directly into which chamber?

Right ventricle

Which respiratory structure is a cartilaginous tube characterized by 'rings' that keep the airway open?

Trachea

Where is the cecum located in the fetal pig digestive system?

At the junction of the small and large intestines

Which vessel carries deoxygenated blood from the lower body back to the heart?

Inferior Vena cava

In a male fetal pig, where are the testes usually located before they descend into the scrotum?

In the abdominal cavity near the kidneys

Which structure is the thin, transparent membrane that covers the heart?

Pericardium

Which structure acts as a muscular valve to regulate the flow of partially digested food (chyme) from the stomach into the small intestine?

Pyloric valve

In a female fetal pig, which structure is a Y-shaped organ where fetal development occurs, located posterior to the kidneys?

Uterine horn

Which of the following vessels is responsible for carrying oxygenated blood specifically to the head and brain of the pig?

Common Carotid artery

What is the name of the opening leading into the larynx (voice box) that is covered during swallowing?

Glottis

Which glandular organ is found nestled in the first loop of the small intestine (duodenum) and has both digestive and endocrine functions?

Pancreas

Where would you find the coronary arteries in a fetal pig dissection?

On the external surface of the heart muscle

Which structure is the muscular tube that connects the pharynx to the stomach?

Esophagus

In the urogenital system, what is the function of the ureters?

Carrying urine from the kidneys to the urinary bladder

The hard palate is located on the roof of the mouth. How does its structure differ from the soft palate located further back?

It’s supported by bone and has ridges (rugae)

Abdominal cavity

The region posterior to the diaphragm containing digestive and urogenital organs

Thoracic cavity

The region anterior to the diaphragm containing the heart and lungs (the chest)

Mesentery

The clear, "spider-web" like membrane that holds the small intestine coils together

Alveoli

Microscopic air sacs within the Lungs (not visible to the naked eye, but the functional unit)

Soft Palate

The fleshy, smooth area of the roof of the mouth posterior to the hard palate

Papillae

Tiny bumps on the tip of tongue used for taste and grip.

Thyroid

A small, dark, reddish oval gland sitting on top of the Trachea (ventral side)

Aorta

The largest artery in the body; exits the left ventricle and curves dorsally

Aortic Arch

The curved portion of the aorta as it leaves the heart and heads toward the lower body

Superior Vena Cava

Large vein returning deoxygenated blood from the head/arms to the Right Atrium

Renal Artery

Small vessel branching off the abdominal aorta into the Kidney

Renal Vein

Vessel carrying filtered blood from the Kidney to the Inferior Vena Cava

Left Atrium

The upper left chamber (from the pig's perspective); receives oxygenated blood

Right Ventricle

The lower right chamber; pumps deoxygenated blood to the Pulmonary Trunk

Oxygenated

Blood high in oxygen (found in the Left Heart, Aorta, and Umbilical Vein).

Deoxygenated

Blood low in oxygen (found in the Right Heart, Vena Cava, and Umbilical Arteries).

Rectum

The final, straight portion of the large intestine leading to the anus

Large Intestine

Also called the "spiral colon" in pigs; shorter and wider than the small intestine

Small Intestine

The long, highly coiled tube filling much of the lower abdominal cavity

Le pepe (male)

Located internally along the ventral midline, ending at the urogenital opening near the umbilical cord.

Scrotum (male)

The external sac at the posterior end of the male pig (contains the testes)

Testes (male)

Small bean-shaped organs found either in the abdominal cavity or the scrotum

Ovary (female)

Small, bean-shaped organ at the end of the Uterine Horns

Urinary Bladder

The sac located between the two umbilical arteries in the umbilical flap

Umbilical Vein

In umbilical cord, the single large vessel (going to the liver)

Umbilical Arteries

In umbilical cord, the two smaller vessels flanking the bladder