Chapter 24: Musculo-Skeletal System Flashcards
What are the primary components of the musculoskeletal system?
Bones, joints, and muscles
What is one of the main functions of the musculoskeletal system?
Provides structural integrity to the body
How many bones are in the human skeleton?
206 bones
What type of tissue are bones and cartilage examples of?
Connective tissue
Which type of joint is characterized by being immovable?
Nonsynovial joints
What is the role of synovial fluid in synovial joints?
Enables smooth movement between surfaces
What percentage of body weight do muscles constitute?
40% to 50%
What type of muscle is responsible for voluntary movements?
Skeletal muscle
Which muscle type is specialized to function in the heart?
Cardiac muscle
What essential function of the musculoskeletal system involves producing red blood cells?
Hematopoiesis
Bones undergo continuous remodeling primarily to maintain what?
Bone health and strength
What is the primary function of synovial fluid?
Reduces friction in joints.
Which muscles are known as voluntary muscles?
Skeletal muscles.
Where are smooth muscles primarily found?
In internal organs.
How many cervical vertebrae are in the vertebral column?
7 vertebrae.
What is the count of lumbar vertebrae?
5 vertebrae.
How many thoracic vertebrae are present in the spine?
12 vertebrae.
What landmark is represented by the spinous processes of C7 and T1?
Base of the neck.
Which imaginary line connects the top of the iliac crests?
L4.
The inferior angle of the scapula is located at which interspace?
T7 and T8.
What is indicated by the posterior superior iliac spines?
Symmetric dimples over the spines.
Which joint is NOT part of the musculoskeletal system?
Elbow
At what stage does rapid bone growth occur?
Infancy
During childhood, bone growth is characterized as:
Steady growth
Where does bone lengthening occur during adolescence?
Epiphyses