An individual with otherwise normal features, but having very short limbs, may h

Question

An individual with otherwise normal features, but having very short limbs, may have a condition known as _____________, in which epiphyseal cartilages grow unusually slowly. gigantism achondroplasia Marfan's syndrome osteomalacia rickets Differences in body size and proportions between males and females result from the different effects of _________, which affect(s) the growth of the bones calcitriol vitamins A & C vitamin D sex hormones calcium and phosphate salts The simultaneous process of adding new bone and removing previously formed bone is called ____________. internal callus formation endochondral ossification osteomalacia bone remodeling intramembranous ossification

Explanation / Answer

Que 58)

Ans:

An individual with otherwise normal features, but having very short limbs, may have a condition known as B) achondroplasia, in which epiphyseal cartilages grow unusually slowly.

Explanation:

- Achondroplasia is a bone growth disorder that causes disproportionate dwarfism.

- It is the most common form of short limb dwarfism.

- Hence, correct option is: B) achondroplasia.

Que 59)

Ans:

Differences in body sizes and proportions between males and females result from the different effects of D) sex hormones, which affect(s) the growth of bones.

Explanation:

- Sex hormones play a major role in bone development during adolescence and bone maintenance in later life.

- Differences in body sizes and proportions between males and females result from the different effects of sex hormones.

- Hence, correct option is: D).

Que 60)

Ans:

The simultaneous process of adding new bone and removing previously formed bone is called D) bone remodeling.

Explanation:

- Bone remodeling occurs throught a person's life.

- The purpose of bone remodeling is to regulate calcium homeostasis, repair micro-damage to bones from everyday stress and to shape the skeleton during growth.

- Hence, correct option is: D).

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