#1
Which of the following is a component of long bones?
Epiphysis
ExplanationEnd part of the long bone, containing spongy bone and red marrow.
#2
What is the function of the periosteum in long bones?
To protect and nourish the bone tissue
ExplanationOuter membrane covering the bone surface, providing blood supply and protection.
#3
What is the function of yellow marrow in long bones?
To store fat
ExplanationYellow marrow in long bones serves as an energy reserve.
#4
Which of the following is a characteristic feature of long bones?
Presence of a medullary cavity
ExplanationCentral cavity containing bone marrow, characteristic of long bones.
#5
Which of the following is NOT a function of long bones?
Hematopoiesis
ExplanationLong bones do not primarily function in blood cell production.
#6
What is the term for the thin layer of cartilage covering the epiphysis of long bones?
Articular cartilage
ExplanationCartilaginous covering at the joint surfaces, reducing friction and facilitating movement.
#7
Which of the following cells are responsible for bone formation?
Osteoblasts
ExplanationCells involved in the synthesis and mineralization of bone tissue.
#8
What is the name of the long, tubular shaft of a long bone?
Diaphysis
ExplanationMiddle part of a long bone, primarily composed of compact bone.
#9
What is the role of osteocytes in bone tissue?
Maintaining bone matrix
ExplanationOsteocytes are mature bone cells responsible for maintaining bone structure and strength.
#10
Which of the following hormones stimulates bone growth and maintains bone density?
Growth hormone
ExplanationHormone responsible for stimulating growth in bones during childhood and adolescence.
#11
Which type of bone tissue makes up the majority of the diaphysis of long bones?
Compact bone
ExplanationDense, strong bone tissue forming the shaft of long bones.
#12
What is the primary function of osteoclasts in bone tissue?
Bone resorption
ExplanationCells responsible for breaking down and remodeling bone tissue.
#13
Which of the following is NOT a type of bone tissue found in long bones?
Cartilage bone
ExplanationA type of bone tissue not found in long bones; long bones contain compact and spongy bone.
#14
What is the anatomical term for the rounded end of a long bone?
Epiphysis
ExplanationRounded end of a long bone, containing spongy bone and red marrow.
#15
What is the term for the plate of hyaline cartilage found in children and young adults, located at the junction of the diaphysis and epiphysis of long bones?
Epiphyseal plate
ExplanationGrowth plate responsible for lengthening bones during growth.
#16
Which of the following hormones plays a role in calcium regulation and bone metabolism?
Parathyroid hormone
ExplanationHormone involved in increasing blood calcium levels and bone resorption.
#17
Which of the following cells are responsible for bone resorption?
Osteoclasts
ExplanationCells involved in breaking down and remodeling bone tissue.