Important Facts about Human Anatomy

Human Anatomy - Facts to remember

Bones in Human Body

  1. The human body consists of 206 bones.
  2. The longest and largest bone in human body is the thigh bone known as the Femur.
  3. The smallest bone in the human body is located in the middle ear known as the stapes.
  4. The hardest material in the human body is the tooth enamel.

Muscles in Human Body

  1. There are 3 types muscles in the human body - cardiac, smooth and skeletal muscles.
  2. The strongest muscle in the human body is the jaw muscle known as the masseter.
  3. The largest muscle in the human body is the buttock muscle known as the gluteus maximus .

Blood Vessels in Human Body

  1. The largest artery in the human body is the Aorta which carries oxygenated blood from the heart to the whole of human body.
  2. The largest vein in the human body is the inferior vena cava which carries deoxygenated blood from the lower half of the body back up to the heart.
  3. The smallest blood vessel in the human body is the capillary which facilitates exchange of oxygen and nutrients between the blood and the tissues.

Organs and Glands in Human Body

Organs and Glands in Human Body 

Difference between an organ and a gland: An organ is a structural unit composed of multiple types of tissue that work together to perform specific functions, whereas a gland is type of organ that is specialized in producing and secreting substances like hormones, enzymes, mucus, or other products. In short, all glands are organs but not all organs are glands.

  1. The largest organ of the human body is its skin.
  2. The largest internal organ and also the largest exocrine gland is the liver.
  3. The smallest exocrine gland is the sweat gland located underneath the skin. While the goblet cell is also very small, it is type of cell rather than a gland.
  4. The largest endocrine gland in the human body is the thyroid gland located in the neck region.
  5. The smallest gland and also the smallest endocrine gland in the human body is the pineal gland located in the middle of the brain.

Random Facts about Human Anatomy

  1. The longest cell in the human body is the nerve cell also known as the neuron whose length may extend upto 1.5 meters.
  2. The element most abundant in human body is Oxygen.
  3. The mineral most abundant in human body is Calcium.
  4. The compound most abundant in human body is Water.
  5. The pigment which gives a dark colour to the skin is Melanin.
  6. Nails are modification of epidermis (external layer of skin), i.e. they contain the same protein.
  7. Muscles are attached to bones by connective tissues called Tendons.
  8. Bones are attached to bones by Ligaments
  9. The volume of blood in an adult is 4.7 to 5 litres
  10. The most common type of blood group is Type O+

Composition of nails Ligament and Tendon

Quiz on Human Anatomy

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Select the right answer

1. Which of the following is responsible for dark pigmentation of skin?

2. Where is the smallest bone of human body located?

3. Which of the following is the most common type of blood group among humans?

4. Where is the pineal gland, the smallest gland of human body located?

5. Which is the most common mineral in human body?

6. The longest bone in the human body is found in which part of human body?

7. Which is the largest artery in the human body?

8. Which is the largest internal organ in the human body?




Quiz on AnatomyQuiz on Human Anatomy