CORRECT ANSWERS.Guaranteed
A+.
What are the 5 layers of the skin?
(From deep to superficial) - ANSWER Stratum basale
Stratum spinosum
Stratum granulosum
Stratum lucidum (only in palms and soles of feet)
Stratum Corneum
What causes osteoporosis? - ANSWER Deficiency of calcium
What hormone is released when CA levels are too high? - ANSWER Calcitonin
(*Think "can tone it down")
What hormone(s) is released when CA levels are too low? - ANSWER Parathyroid
& Calcitriol
Whats the difference between Appositional growth & Epiphyseal growth? -
ANSWER Appositional grows in width
Epiphyseal grows in length
What do ligament do? - ANSWER Attach bone to bone
What do tendons do? - ANSWER Attach bone to muscle
What is bone formation called? - ANSWER Osteogenesis
What happens when growing stops? - ANSWER Epiphyseal plate ossifies
What is ossification? - ANSWER Hardening
The metatarsophalangeal joint is associated with what small bone? - ANSWER
Sesamoid bone (ex Patella)
What part of bone do tendons & ligaments attach to? - ANSWER Periosteum
What vessels can be found in Haversian & Volkmann's canals? - ANSWER Artery,
Vein, & Lymph
What does the matrix of spongy bone look like? - ANSWER Open network of
trabeculae
What is 1/3 of Osseous tissue composed of? - ANSWER CA ions
What type of bone cell resides in endosteum? - ANSWER Osteoclasts
What are osteocytes? - ANSWER Most common cell in bone
, BIO-201 GCU EXAM 2 WITH ALL
CORRECT ANSWERS.Guaranteed
A+.
Where are osteocytes held? - ANSWER In the Lacunae
What is the process when mesenchyme cells differentiate? - ANSWER
Intramembranous ossification
How does the osteoid matrix differ from bone? - ANSWER It doesn't have CA ions
yet
Where is the primary center of ossification located? - ANSWER Diaphysis during
development
What is not a function of skeletal muscles? - ANSWER Store lipids (Adipose cells
do this)
Muscle cells are packed with which protein filaments? - ANSWER Myofibrils
Cytoplasm in animal cells is ____________ in a muscle cell. - ANSWER
Sarcoplasm
Sarcomeres are found in all except? - ANSWER Smooth muscle (It is not striated
like other muscles)
What elastic structure pulls myosin back to "normal"? - ANSWER Titin filaments
What fibrous joints are on the ends of the tibia & fibula? - ANSWER Syndesmoses
What type of joint sutures are mostly immovable? - ANSWER Fibrous
What is true about synovial joints? - ANSWER Separated by fluid-containing joint
cavity
What is not true about synovial fluid? - ANSWER Reduces friction & contains
phagocytic cells
What is not a type of synovial joint? - ANSWER Sealed joint
What type of joint is in costal cartilage of 1st rib & manubrium of sternum? -
ANSWER Synchondroses
What structure of a synovial joint is a band-like ligament? - ANSWER Reinforcing
ligament
(ex Knee joint)
All influence the stability of synovial joints except? - ANSWER Bursae
What joint is multiaxial w/ a hemispherical head? - ANSWER Ball & socket