Skeletal
Physiology
Physiology
Skeletal
Anatomy
Anatomy
Movement
Muscular
Physiology
Physiology
Muscular
Anatomy
Anatomy
100
What is the function of red bone marrow?
Produce blood cells and platelets
100
List 4 bones are pictured here?
Parietal, frontal, temporal, zygomatic, mandible
100
What is the difference between asynarthrosis and diarthrosis joint?
A synarthrosis is an immobile or nearly immobile joint. A diarthrosis is a freely moveable joint.
100
What is a motor unit?
One motor neuron + multiple muscle fibers.
100
Name the three hamstring muscles.
Semitendinosus, semimembranosus, biceps femoris
200
How does the skeleton assist in producing movement?
Muscles attach to bones. Bones are what muscles move to produce body movement. Bones are light enough that muscles can move them.
200
What bone is pictured here?
tibia
200
This type of joint allows you to use your thumb to grab things with your hand in a way that you can’t with your foot.
What is saddle joint?
200
Explain how muscles help regulate body temperature.
When body heat falls below optimal levels, the skeletal muscles increase their activity to make heat. Increased muscle contractions means increased cellular respiration which is an exothermic, or heat producing, reaction.
200
Name the four rotator cuff muscles
Supraspinatus, infraspinatus, subscapularis, teres minor
300
Describe longitudinal growth.
Cartilage within the epiphyseal plates begins to replicate. The side of the epiphyseal plate closest to the diaphysis begins to solidify and bone is created, allowing bone to lengthen.
300
What are 4 of the 6 main functions of the skeletal system?
Support/framework, protect organs, aid movement, storage of minerals, blood cell formation, hormone production
300
What is the difference between a pivot and hinge joints? Give an example of each.
Hinge joint permits motion in one direction, that is, backward and forward. ex: the ankle and knee joints.
Pivot joint allows rotation of a bone over the other. ex: between the radius and ulna, or atlas and axis in the neck.
300
What is a muscle insertion?
The distal attachment, attached to more moveable end
300
The _________________ muscle acts to shrug the shoulders.
upper trapezius
400
What is ossification?
The process of bone formation. By way of osteoblasts and osteoclasts
400
Identify the bones in this picture.
Sacrum, coccyx, ilium, ishium, pubis
400
What is a fibrous joint? Give an example.
Fibrous joints connect adjacent bones by fibrous connective tissue especially collagen fibers. Ex: The sutures are present between the bones of the skull or teeth connected to the maxilla or mandible.
400
What is acetylcholine and why is it important for muscle contraction?
Acetylcholine is a neurotransmitter. i.e. released by neurons. It is used at the neuromuscular junctions, triggering the firing of motor neurons and affecting voluntary movements.
400
What muscles are pictured here? 
gastrocnemius, soleus, plantaris
500
What is the name for a bone cell?
osteocyte
500
What are the sections of the vertebral column? How many vertebrae per section?
Cervical - 7
Thoracic - 12
Lumbar - 5
Sacrum - 5 (fused)
Coccyx - 4 (fused)
500
What are the major differences between synovial and cartilaginous joints?
Cartilaginous joints contain cartilage and allow very little movement. Synovial joints are the only joints that have a space (a synovial cavity filled with fluid) between the adjoining bones.
500
Describe the sliding filament model of muscle contraction. Use the words: sacromere, myosin heads, actin filaments, H zone
Muscles contract because sarcomeres contract. Sarcomeres contract when the heads of myosin filaments grab the thinner actin filaments and pull them to slide past each other. This causes the filaments to overlap more (disappearing H zone) and the sarcomere to shorten
500
What muscle is pictured here?
Sartorius