Skeletal and Integumentary Systems Flashcard

Front

Which of the following is NOT a major function of the skeleton?

• Locomotion
• Digestion
• Mineral storage
• Haematopoiesis

Back

Digestion

Answer explanation

The skeleton's major functions include locomotion, mineral storage, and haematopoiesis (blood cell production). Digestion is not a function of the skeleton, making it the correct answer.

Front

What is the primary role of haematopoiesis in the skeletal system?

Back

Formation of blood cells

Answer explanation

The primary role of haematopoiesis in the skeletal system is the formation of blood cells. This process occurs in the bone marrow, which is a key component of the skeletal system, producing red blood cells, white blood cells, and platelets.

Front

Which type of joint allows for the greatest range of movement?

Back

Ball and socket joint

Answer explanation

The ball and socket joint allows for the greatest range of movement, enabling rotation and movement in multiple directions, unlike hinge, pivot, or fixed joints which have more limited motion.

Front

What is the main difference between ligaments and tendons?

Back

Ligaments connect bone to bone, tendons connect muscle to bone

Answer explanation

The correct choice states that ligaments connect bone to bone, while tendons connect muscle to bone. This distinction is crucial for understanding their roles in the musculoskeletal system.

Front

Which adaptation is found in the internal bone structure of birds to aid flight?

Back

Hollow, pneumatic bones

Answer explanation

Birds have hollow, pneumatic bones that reduce body weight without sacrificing strength, making it easier for them to fly. This adaptation is crucial for flight efficiency and maneuverability.

Front

The axial skeleton includes which of the following? Limbs and girdles, Skull, vertebral column, and rib cage, Only the vertebral column, Only the appendages

Back

Skull, vertebral column, and rib cage

Answer explanation

The axial skeleton consists of the skull, vertebral column, and rib cage, which support and protect the body's vital organs. The other options refer to the appendicular skeleton, which includes limbs and girdles.

Front

Which of the following is NOT a function of the integumentary system? Protection, Sensation, Blood cell production, Temperature regulation

Back

Blood cell production

Answer explanation

The integumentary system primarily functions in protection, sensation, and temperature regulation. Blood cell production occurs in the bone marrow, making it the correct choice as it is NOT a function of the integumentary system.

Front

Which structure is unique to birds and not found in mammals? Options: Hair, Feathers, Nails, Horns

Back

Feathers

Answer explanation

Feathers are a unique characteristic of birds, providing insulation and enabling flight. In contrast, mammals have hair, nails, and horns, but none possess feathers, making this structure exclusive to birds.

Front

What is the main function of sebaceous glands in mammalian skin?

Back

Secrete oil to lubricate hair and skin

Answer explanation

The main function of sebaceous glands is to secrete oil, which lubricates hair and skin, preventing dryness and providing a barrier against environmental factors.

Front

Difference between horns and antlers?

Back

Antlers are shed and regrown each year, horns are permanent

Answer explanation

Antlers are shed and regrown each year, while horns are permanent structures that do not shed. This key difference distinguishes the two, making the correct answer clear.