The malleus, incus, and stapes are located in which part of the body?

Hemoglobin is a protein in red blood cells that carries oxygen to the cells.

Some possible explanations for the other choices are:

They do not carry oxygen to the cells, but they use oxygen to perform cellular respiration.

It does not carry oxygen to the cells, but it codes for the synthesis of proteins, including hemoglobin.

It does not carry oxygen to the cells directly, but it transports blood that contains hemoglobin and oxygen.

The malleus, incus, and stapes are the three tiny bones in the middle ear that transmit sound vibrations from the tympanic membrane (eardrum) to the oval window of the inner ear.

They are also called the auditory ossicles or ear bones.

Choice A is wrong because the nose does not contain any bones, only cartilage and soft tissue.

Choice B is wrong because the brain does not contain any bones, only neurons and glial cells.

Choice C is wrong because the throat does not contain any bones, only muscles and glands.

Choice D is right because the ear contains the malleus, incus, and stapes in its middle part. They are the smallest bones in the body and are named after their shape: malleus (hammer), incus (anvil), and stapes (stirrup).

The vomer is a small, thin, plow-shaped, midline bone that occupies and divides the nasal cavity.

A deviated septum is a condition where the nasal septum, which is made of cartilage and bone, is crooked or displaced.

A punch in the nose can cause trauma to the vomer and result in a deviated septum.

Choice B. Calcaneus is wrong because it is the heel bone that forms the back part of the foot.

It has nothing to do with the nose or the septum.

Choice C. Malleus is wrong because it is one of the three small bones in the middle ear that transmit sound vibrations from the eardrum to the inner ear.

It has nothing to do with the nose or the septum.

Choice D. Sella turcica is wrong because it is a depression in the sphenoid bone at the base of the skull that contains the pituitary gland.

It has nothing to do with the nose or the septum.

Eye. Aqueous humor is a clear, watery fluid that fills the anterior and posterior chambers of the eye.

It is secreted by the ciliary body and drains through the scleral venous sinus. It provides nutrients to the lens and cornea, which have no blood supply, and maintains the eye’s normal pressure and shape.

Choice A is wrong because aqueous humor is not found in the intestines.

The intestines contain digestive fluids such as bile and enzymes.

Choice B is wrong because aqueous humor is not found in the kneecap.

The kneecap contains synovial fluid, which lubricates the joint.

Choice C is wrong because aqueous humor is not found in the heart.

The heart contains blood, which circulates oxygen and nutrients throughout the body.