Rat Dissection

The masseter is a muscle located in the cheek region that is responsible for the movement of the jaw during chewing.

The gluteus superficialis is a muscle located in the upper leg and is situated next to the bicep femoris towards the head end.

The bicep femoris is a muscle in the upper leg, specifically located next to the gluteus superficialis towards the tail end of the body.

The spinodeltoid muscle is located directly above the shoulder joint, not on the arm, lower back, or back of the thigh.

The pectoralis superficialis is a large muscle located on the underside of the chest, above the heart. It is commonly referred to as the 'breast muscle' in humans and plays a significant role in movements of the shoulder and arm.

The gastrocnemius is a muscle located in the lower leg and is commonly referred to as the calf muscle.

The triceps brachii muscle is responsible for extending the forearm at the elbow joint. This action straightens the arm.

The external abdominal oblique is a tubal muscle that is part of the abdominal wall and is located on the side of the body, running diagonally from the lower ribs to the pelvis. It aids in trunk rotation and bending sideways.

The diaphragm is a thin, connective tissue-like muscle that plays a crucial role in breathing by separating the thoracic cavity from the abdominal cavity.

The cerebrum is responsible for higher brain functions such as thought and action.

The medulla oblongata is a part of the brainstem located underneath the spinal cord and is responsible for regulating vital autonomic functions such as breathing, heart rate, and blood pressure.

The stomach is situated in the upper abdomen, connected to the pancreas and esophagus, and located below the liver. It plays a vital role in digestion.

The spleen is an organ found underneath the stomach, on the left side of the body. It plays a role in filtering blood and maintaining healthy immune function.

The cecum is a large, sac-like part of the large intestine where bacteria break down cellulose and other plant fibers.

The colon is a skinny tube that is part of the large intestine, responsible for absorbing water and electrolytes from feces before they are excreted from the body.

The small intestine is positioned above the large intestines in the digestive system as part of the gastrointestinal tract.

The pancreas is an organ connected to the stomach and plays a crucial role in digestion and regulating blood sugar levels.

The liver is a vital organ responsible for various functions in the body, including detoxification, protein synthesis, and the production of biochemicals necessary for digestion.

The hard palate is located towards the front of the mouth, specifically towards the teeth. It is the bony structure that separates the mouth from the nasal cavity.

The soft palate is located towards the back of the mouth, behind the hard palate. It plays a role in closing off the nasal passages during swallowing and speech.

The esophagus is a muscular tube that transports food from the mouth to the stomach through a process called peristalsis. It does not produce bile, filter blood, or control breathing.

The trachea is a ribbed pink tube located next to the esophagus in the respiratory system.

The larynx is a boxlike structure connected to the trachea, commonly referred to as the voice box, which plays a crucial role in phonation and protecting the airway during swallowing.

The lungs are located on both sides of the heart in the thoracic cavity.

The ventricles are the two lower chambers of the heart that pump blood out to the body.

The correct answer refers to the upper chambers of the heart, while the incorrect answers are associated with different parts of the heart anatomy.

The aorta is actually the largest artery in the body, not a vein or a chamber of the brain. It is responsible for carrying oxygen-rich blood from the heart to the rest of the body, and is typically white and circular in shape.

The vena cava is a large vein that carries deoxygenated blood from the body back to the heart's right atrium. It is typically colored blue and is located at the lower part of the heart.