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What are the two sites of muscle attachment on the proxial femur?
Wiki User
∙ 12y ago
gluteal tuberosity and the greater and lesser trochanters
Wiki User
∙ 8y ago
Wiki User
∙ 12y agoGreater and lesser trochanter
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Sites of muscle attachment on the proximal femur?
the medial epicondyle and the lateral epicondyle - The gluteal tuberosity and linea aspera
In a chromosome a blank is a constricted region with attachment sites for microtubules?
In a chromosome, a centromere is a constricted region with attachment sites for microtubules.
Is the sternocleidomastoid named for its origin and insertion?
Yes! It originates at the sternum, and the medial portion of the clavicle, and inserts into the mastoid process.
What is the role of calcium ions in muscle contraction?
They bind to regulatory sites on troponin to remove contraction inhibition
When a muscle is at rest the active sites on the actin are blocked by?
TROPOMYOSIN MOLECULES ( troponin hold the tropomyosin in place)
Sites of muscle attachment on the proximal femur?
the medial epicondyle and the lateral epicondyle - The gluteal tuberosity and linea aspera
In a chromosome a blank is a constricted region with attachment sites for microtubules?
In a chromosome, a centromere is a constricted region with attachment sites for microtubules.
Why are there more indirect-that is tendinous-muscles attachments to bone then there are direct attachments?
Tendons are very versitile. They are made of collagenous tissue which is highly resistant to extension and also relatively flexible. The main attachment sites of skeletal muscles are tendons. Tendons are the main attachment type for skeletal muscle to bone or cartilage. Tendons are by far the most important tissue for attachment and are present wherever the point of insertion is distant or the muscle must exert its forces of contraction across a joint.
What does bacteria use to attach themselves to the host?
bacteria use pilli as the sites of attachment.. these are hollow,non helical tube like structures.. but are smaller than flagella.. sex pilli are sites of attachment for the process of conjugation..
What muscle proteins help turn muscle contration on and off?
Calcium is responsible for binding to troponin sites which release tropomyosin off the active binding sites on the thin filament.
What modern skeletal features does the splanchnocranium give rise to?
In Agnathans, the spalnchnocranium supports the gills and offers sites for muscle attachment. In Gnathostomes, these elements contribute to the jaws and hyoid apparatus. In Osteicthyes, this elements ossify in the endochondral bones and in mammals the splanchnocranium forms the inner ear bones.
The main sites of blood cell production in adults are the spleen and the liver?
No. Blood cells are formed in the bone marrow, especially the large bones (femur, pelvis).
Is the sternocleidomastoid named for its origin and insertion?
Yes! It originates at the sternum, and the medial portion of the clavicle, and inserts into the mastoid process.
What muscle cell protein covers the myosin binding sites on actin fimlaments?
tropomyosin
Binding sites on the actin molecules are covered by troponin and?
muscle that produces a give movement
How does a lack of calcium reuptake to the sacroplasmic reticulum affect the muscle?
The thin filament sites remain open to the binding and stroke of the thick filament and there would be no muscle relaxation without the reuptake of Ca 2+ so the thin filament sites are closed.
What is the protein that regulates muscle contraction by controlling the availability of active sites on actin called?
tropomyosin
