40 Questions
How many bones make up the human skeletal system?
206
What is the primary role of the axial skeleton?
To provide shape and support to the body
What is the function of bones in hematopoiesis?
To form blood cells
What percentage of bones are composed of water?
50%
What is the purpose of the appendicular skeleton?
To provide movement to the body
What is the term for the manner in which bones come together at a joint?
Articulation
What is the main component of osseous tissue?
A solid, calcified, rigid substance
What type of bone is the femur classified as?
Long bone
Which type of joint allows no movement?
Synarthrosis
What is the function of the periosteum?
Outer covering of the bone
What type of bone is the vertebrae classified as?
Irregular bone
What is the diaphysis?
Shaft of the bone
What type of joint allows slight movement?
Amphiarthrosis
What is the epiphysis?
Growing end of the bone
What is the advantage of the spinal curves in the vertebral column?
They can support the weight of the body and provide balance
How many vertebrae are present in the lumbar curve?
5
What is the function of osteoclasts in bone growth?
They break down bones
What is the characteristic of the male pelvis?
It is shaped like a funnel and is heavier and stronger
What is osteoporosis?
An age-related loss of bone mass or density
What is the function of osteoblasts in bone growth?
They form new bones
What forms the pelvic basin?
Hip bones, sacrum, and coccyx
What is the primary function of osteocytes in the bone?
To transport nutrients and wastes
What is the main component of the extracellular matrix of bone that provides resilience?
Collagen
What is the process of bone resorption controlled by?
Osteoclasts and parathyroid hormone
What is the effect of a deficiency of vitamin D on bone development?
Rickets and osteomalacia
What is the effect of excessive growth hormone on bone growth?
Gigantism and acromegaly
Where does blood cell formation occur in the body?
Red bone marrow
What is the primary function of physical stress on bone growth?
Stimulates bone growth
What is the main function of sex hormones in bone development?
Stimulates bone formation
What is the primary function of the thyroid gland in bone development?
Directs bone deposition and resorption
Osteocytes are responsible for transporting nutrients and wastes.
True
The extracellular matrix of bone is composed of collagen and organic salts.
False
Parathyroid hormone is involved in bone deposition.
False
Vitamin D deficiency leads to fragile bones.
False
Insufficient thyroid hormone can lead to accelerated bone growth.
False
Physical stress can inhibit bone growth.
False
Hematopoiesis occurs in the yellow bone marrow.
False
The primary function of the skeletal system is to store inorganic salts.
False
Calcium phosphate is a type of inorganic salt stored in bones.
True
Osteoblasts are responsible for breaking down bone tissue.
False
Test your knowledge of the skeletal system, including the axial and appendicular skeleton, and their components. Learn about the different bones, cartilage, tendons, and ligaments that make up the framework of the body.
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