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Skeletal System
The skeletal system provides definite shape and mechanical support to the body, and it also helps in movement and locomotion. Ask questions about the skeletal system and bones here.
14,490 Questions
What Problems with which part of the bone would lead to the greatest loss of strength?
Compact tissue is for apex
Why do humans have so many bones in their feet?
There is no specific reason that the hand has 27 bones and the foot has 26 bones other than the fact that the hand is very useful in life. The hand is required to perform a huge variety of movements.
Is cartilage less flexible than bone?
No, it is not. Bone is strong but it doesn't bend easily. Cartilage is more flexible.
What is the classification of the muscular system?
The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. It permits movement of the body, maintains posture, and circulates blood throughout the body. The muscular system in vertebrates is controlled through the nervous system, although some muscles (such as the cardiac muscle) can be completely autonomous.
There are three distinct types of muscles: skeletal muscles, cardiac or heart muscles, and smooth (non-striated) muscles. Muscles provide strength, balance, posture, movement and heat for the body to keep warm.
CARDIAC MUSCLE:
Heart muscles are distinct from skeletal muscles because the muscle fibers are laterally connected to each other. Furthermore, just as with smooth muscles, they are not controlling themselves. Heart muscles are controlled by the sinus node influenced by the autonomic nervous system.
SMOOTH MUSCLE:
Smooth muscles are controlled directly by the autonomic nervous system and are involuntary, meaning that they are incapable of being moved by conscious thought. Functions such as heart beat and lungs (which are capable of being willingly controlled, be it to a limited extent) are involuntary muscles but are not smooth muscles.
The repeating unit of a skeletal muscle fiber is the?
Myofibrils
The sarcomere is the unit of muscular contraction.
Is the sacroiliac joint a pivot joint?
No, the sacroiliac joint is not a pivot joint. It is a joint between the sacrum and the ilium. It is a gliding joint.
How many bones are in the palm of my hand?
you have 8 wrist bones scaphoid, lunate, triquetrum (this one i forgot how to spell sorry its been a while but im close) , pisiform, trapizium, trapezoid, capitate, hamate, then you have 5 metacarpals that are actually the palm, followed by the phalangies or finger bones
What hormone increase bone density?
Calcium is the most important mineral for increasing bone density. It can be found in green vegetables, dairy milk, and supplements from either a drugstore or a pharmacist. Other helpful minerals are boron, phosphorous, copper, magnesium, potassium, manganese, and zinc.
rib bones are the bones which are known as rib cage .These bones are very thin and flexible thus allowing the lungs to expand and contract for the respiration .
they also serve to protect heart and lungs
Are fish bones the same as human bones?
They are the same chemically; their location and numbers vary, as do their purposes.
Why are ligaments not found in axial skeleton?
But ligaments are found in both. Bones are connected to bones with ligaments.
The Peripheral Nervous System is made up of 12 pairs of cranial nerves which transmit signals from the joints, skeletal muscles and skin to the brain. The PNS is further subdivided into the Somatic Nervous System and the Viscera.
