Author: anatomycorner

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Greater Omentum

The greater omentum is a fold of visceral peritoneum that hangs down from the greater curvature of the stomach.   It stores fat and also has an immune function, you might notice white spots embedded in the tissue – macrophage collections. The lesser omentum is found in the …

Label the Kidney

A = interlobar arteries and veins B = renal artery C = renal vein D = ureter E = renal pyramids F = minor calyx G = major calyx H = renal pelvis I = capsule J = medulla K = cortex L = nephrons

Quiz: Respiratory System

A:  Mouth | B: Thyroid Gland | C:  Trachea |  D: Primary Bronchi E:  Secondary Bronchi |  AB:  Bronchioles or Tertiary Bronchi AC:  Alveoli  |  AD:  Pleural Cavity |  AE:  Diaphragm BC:  Cardiac Notch |  BD:  Pharynx  |  BE:  Epiglottis CD:  Thyroid Cartilage (Adam’s Apple) |  CE:  Larynx DE:  Superior …

Skull – Mandible

The mandible is the lower jaw and articulates with the skull at the coronoid process and the mandibular condyle.   Two perpendicular parts (creating a right angle) are called the rami (ramu, singular.)   A hole at the front of the mandible provide an opening for nerves and …

Stomach and Pyloric Sphincter Valve

The pyloric sphincter valve is found between the stomach and the duodenum of the small intestine.  It regulates the passage of food from the stomach into the small intestine.  On the dissected frog below, the black pin indicates the stomach and the red indicates the location of the …

Heart and Lungs

The heart and lungs of mammals are closely associated.  You can find the lungs located on either side of the heart and often toward the dorsal side of the thoracic cavity.  The lungs are soft, spongy tissue that are attached to the heart by the pulmonary artery and …

Label the Structures of the Pelvis

                Answers: A=sacrum B = ilium C = acetabulum D = ischium E = obturator foramen AB = pubis AC = symphysis pubis AD = sacroiliac joint This quiz is also available on quizlet.

Gallbladder

The gallbladder is part of the biliary system (with the liver and the bile ducts) and has the primary job of storing bile.   Humans can live without a gallbladder, the removal of the organ is called a cholecystectomy.   Some animals don’t even have a gallbladder to …

Aorta and Pulmonary Vessels

Often students mistake the pulmonary artery for the aorta.  The pulmonary artery, or pulmonary trunk, is the most anterior vessel found on the heart; it is indicated below with a blue pencil.  The aorta lies behind the pulmonary trunk, indicated with the red pencil. When the heart is …

Brachiocephalic Artery in Cats

In humans, the arch of the aorta has three main branches that deliver blood to the head and arms.  The cat only has two vessels that branch directly from the aorta.   Many of the cat diagrams will show the following diagram to help you locate the brachiocephalic …

Celiac Trunk

The celiac trunk (artery) is the first major branch of the abdominal aorta, as shown in the photo below. The celiac artery then branches into the gastric artery, which goes to the stomach, the hepatic artery  that goes to the liver, and the splenic artery that goes to …

Iliac Artery

On the cat, the external iliac arteries bifurcate off the abdominal aorta, forming a Y.   The internal iliac arteries also form a Y on the inside of the external iliac arteries.    The external iliac arteries will continue into the hind limbs of the cat and become …

Abdominal Aorta

The abdominal aorta is the largest artery of the abdominal cavity.  The aorta originates at the heart, forms and arch and then continues as the descending aorta.    Above the diaphragm, it is called the thoracic aorta; below the diaphragm, it is called the abdominal aorta.  There are …

Urinary Bladder

The urinary bladder collects urine excreted by the kidneys.  It is a hollow, expandable structure located in the lower abdomen.   The photo below shows the urinary bladder of a sheep.  The bladder is the balloon-like structure in the upper right area of the tray.   It is …

Eye Dissection

Procedural video showing how to dissect the eye and identify the major structures such as the lens, iris, pupil, vitreous humor, retina, optic disk, optic nerve. and tapetum.  Unlike humans, cows have a reflective surface on the back of their eye which enables them to see in the …

Eye – Vitreous Humor

The vitreous humor is the clear gel that fills the space between the lens and the retina.  On the cow eye, this can usually be removed in a single clump of thick liquid, unlike the aqueous humor which is thin and watery. Most eye floaters are caused by …

Label the Parts of the Ear

1. Auricle 2. External Auditory Meatus 3. Tympanic Membrane 4.  Tympanic Cavity 5.  Round Window 6.  Eustachian Tube 7.  Cochlea 8.  Vestibulocochlear nerve 9.  Semicircular canals 10.  Stapes 12.  Incus 13.  Malleus 15. Outer Ear 16. Middle Ear 17.  Inner Ear

Brain – Pituitary Gland

The pituitary gland, also called the hypophysis, is associated with the endocrine system.  It it located on the ventral side of the brain attached to the hypothalamus.   Under the direction of the brain, the pituitary gland controls the secretion of hormones that regulate growth, blood pressure, sexual …