Animal Tissue and Anatomy

ENT stands for Ear, Nose, and Throat, a medical specialty also known as Otolaryngology. This department deals with disorders of the head and neck, particularly focusing on the ear, nose, and throat regions. Option D incorrectly mentions 'Thyroid' instead of 'Throat'.

The skin is the body's largest organ, weighing about 8 pounds and covering approximately 22 square feet in adults. It provides protection, temperature regulation, sensation, and numerous other vital functions.

The skin is the largest organ in the human body, covering approximately 20 square feet in adults and accounting for about 16% of total body weight. It serves as a protective barrier, regulates temperature, and provides sensory input, making it both the largest and heaviest organ.

The Medulla Oblongata is a vital part of the human brain, specifically located in the brainstem. It controls critical autonomic functions including breathing, heart rate, and blood pressure. The medulla oblongata connects the brain to the spinal cord and regulates essential life-sustaining processes. It is definitely not part of the heart, liver, or lungs - though it controls functions related to these organs through neural connections.

The pharynx is the muscular cavity that connects the mouth and nasal passages to the esophagus (for swallowing food) and larynx (for breathing). It's commonly called the throat.

The skin is the largest organ in the human body, covering approximately 2 square meters in adults. It serves multiple functions including protection, temperature regulation, sensation, and vitamin D synthesis. The liver is the largest INTERNAL organ, but skin is larger overall.

Lubb and Dubb are the two sounds produced by the heart valves during a cardiac cycle. Lubb (S1) is caused by the closure of the atrioventricular valves (mitral and tricuspid), while Dubb (S2) is caused by the closure of the semilunar valves (aortic and pulmonary).

The skin is the largest organ in the human body by both weight and surface area, covering approximately 22 square feet and accounting for about 16% of body weight. It provides protection, temperature regulation, and sensation. The liver is the largest INTERNAL organ, but skin is overall the largest.

The heart is centrally located in the chest cavity (mediastinum), with the two lungs positioned on either side. The left lung is slightly smaller to accommodate the heart's position. This separation allows the heart to pump blood efficiently to both lungs for oxygenation before circulation to the rest of the body.

Dogs have very limited sweat glands - primarily located in their paw pads - which are insufficient for thermoregulation. Instead, dogs primarily cool themselves through panting, where moisture evaporates from their tongue and the lining of their lungs. This is why the tongue is the correct answer, not the skin.

The skin is the largest organ in the human body, covering approximately 2 square meters in adults. It provides protection, temperature regulation, and sensation.

The medulla oblongata is located at the base of the brainstem and is a vital part of the brain. It controls essential autonomic functions like breathing, heart rate, and blood pressure, making it crucial for survival.

Rhinitis is the medical term for inflammation of the nasal mucous membranes (nose lining). It's commonly associated with allergies, colds, or sinus infections. 'Rhino' comes from Greek meaning nose, not rhinoceros.

The Eustachian tube connects the middle ear to the nasopharynx (back of the throat and nasal cavity). This tube helps equalize air pressure on both sides of the eardrum and allows drainage of middle ear secretions. It is crucial for maintaining proper ear function and hearing, especially during altitude changes.