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Bone Composition and Growth Quiz

#1

Which mineral primarily contributes to the hardness of bones?

Calcium
Explanation

Calcium contributes to bone hardness.

#2

What type of cells are responsible for bone formation?

Osteoblasts
Explanation

Osteoblasts form bones.

#3

Which vitamin is essential for the absorption of calcium in the body?

Vitamin D
Explanation

Vitamin D facilitates calcium absorption.

#4

What is the name of the condition characterized by weak and brittle bones?

Osteoporosis
Explanation

Osteoporosis results in weak and brittle bones.

#5

What is the name of the process by which bone tissue is regenerated after injury?

Bone remodeling
Explanation

Bone remodeling regenerates bone tissue after injury.

#6

What is the outer covering of bones called?

Periosteum
Explanation

Periosteum covers bones.

#7

Which hormone plays a crucial role in regulating bone growth and maintenance?

Parathyroid hormone (PTH)
Explanation

Parathyroid hormone regulates bone growth and maintenance.

#8

Which bone in the human body is the longest?

Femur
Explanation

The femur is the longest bone in the human body.

#9

What is the process by which bones are formed in the embryo?

Intramembranous ossification
Explanation

Bones form through intramembranous ossification in the embryo.

#10

What is the medical term for the growth plate in bones?

Epiphyseal plate
Explanation

The growth plate in bones is called the epiphyseal plate.

#11

What is the process by which bone tissue is broken down?

Osteolysis
Explanation

Osteolysis is the breakdown of bone tissue.

#12

Which of the following is not a function of the skeletal system?

Hormone secretion
Explanation

Hormone secretion is not a function of the skeletal system.

#13

Which hormone is responsible for inhibiting bone resorption?

Calcitonin
Explanation

Calcitonin inhibits bone resorption.

#14

What is the process by which bone tissue adapts to mechanical stress?

Wolff's Law
Explanation

Wolff's Law describes bone adaptation to mechanical stress.

#15

Which bone is located in the forearm and is positioned on the side of the thumb?

Radius
Explanation

The radius is located in the forearm, positioned on the side of the thumb.

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