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Epiphyseal Plate Zones Quiz

#1

Which zone of the epiphyseal plate contains resting cartilage cells?

Zone of resting cartilage
Explanation

Site of inactive chondrocytes

#2

What happens in the zone of hypertrophy in the epiphyseal plate?

Older cartilage cells enlarge
Explanation

Chondrocytes grow in size

#3

Which zone of the epiphyseal plate is closest to the diaphysis?

Zone of ossification
Explanation

Adjacent to the shaft of the bone

#4

What is the primary function of the epiphyseal plate?

To increase bone length
Explanation

Facilitates longitudinal growth

#5

What is the histological composition of the epiphyseal plate?

Hyaline cartilage
Explanation

Consists mainly of cartilage

#6

Which hormone stimulates bone growth by acting on the epiphyseal plate?

Growth hormone
Explanation

Promotes bone elongation

#7

Which zone of the epiphyseal plate is responsible for the actual lengthening of the bone?

Zone of proliferation
Explanation

Area of active cell division

#8

Which vitamin is essential for the synthesis of collagen in the epiphyseal plate?

Vitamin C
Explanation

Critical for collagen production

#9

What is the main structural component of the extracellular matrix in the epiphyseal plate?

Collagen fibers
Explanation

Primary protein for matrix structure

#10

In which zone of the epiphyseal plate do cartilage cells undergo apoptosis?

Zone of calcification
Explanation

Region of chondrocyte death

#11

What role do blood vessels play in the epiphyseal plate?

They provide oxygen and nutrients
Explanation

Supply vital substances for growth

#12

How does the closure of the epiphyseal plate affect bone growth?

It slows down bone growth
Explanation

Halts longitudinal expansion

#13

Which of the following is NOT a function of the epiphyseal plate?

Produce red blood cells
Explanation

Not involved in hematopoiesis

#14

Which of the following factors can affect the rate of bone growth at the epiphyseal plate?

All of the above
Explanation

Various influences on growth rate

#15

What is the term for the process of bone resorption in the epiphyseal plate?

Remodeling
Explanation

Restructuring of bone tissue

#16

Which of the following factors can inhibit bone growth at the epiphyseal plate?

Estrogen
Explanation

Can impede longitudinal growth

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