Answer:
Knee.
Explanation:
Joints may be defined as the articulation by which the bones meet together and constitute the skeletal system. These joints helps in the particular movement of the body.
Tensor fasciae latae muscle is present in the thigh. This muscle is attached with tibia and innervated by the super gluteal nerve that supplies the blood artery. This muscle plays an important role in the stabilization of the knee and the hip joint.
Thus, the correct answer is option (c).
Answer:
In muscles contraction the correct order of the steps are: A (Nerve impulse reaches the muscle), B (Action potential travels down T-tubules), C (Calcium binds to troponin), D (Tropomyosin moves).
Explanation:
Skeletal muscle contractions are based on different physiological and biochemical phenomena that happen in every cell. These phenomena are due to stimulation produced by somatic motor neurons, which axons get in contact with muscle fibers through a neuromuscular synapse. In rest, attraction strengths between myosin and actin filaments are inhibited by the tropomyosin. When an action potential is originated in the central nervous system, it travels to the somatic motor neuron membrane: the muscle fiber, and activates the calcium channels releasing it in the neuron. Calcium makes vesicles to fuse with the membrane and release the neurotransmitter named acetylcholine (Ach) into the synaptic space in the juncture. Then, Ach binds to its receptors on the skeletal muscle fiber. This causes the ion channels to open, and positively charged sodium ions cross the membrane to get into the muscle fiber (sarcoplasm) and potassium get out. The difference in charges caused by the migration of sodium and potassium makes the muscle fiber membrane to become more positively charged (depolarized). The action potential caused by this depolarization enters the t-tubules depolarizing the inner portion of the muscle fiber. This activates calcium channels in the T tubules membrane, that make the calcium be released into the sarcolemma. At this point, tropomyosin is obstructing binding sites for myosin on the thin filament. When calcium binds to the troponin C, the troponin T alters the tropomyosin by moving it and then unblocks the binding sites. Myosin binds to the uncovered actin-binding sites, and while doing it ATP is transformed into ADP and inorganic phosphate. Z-bands are then pulled toward each other, thus shortening the sarcomere and the I-band, and producing muscle fiber contraction.
Tastes associated with caffeine, quinine, or aspirin are detected primarily
by bitter taste receptors.
These receptors can either be TAS2Rs or T2Rs and they help to protect
against harmful food substances. They are also responsible in the
stimulation of hormones which increases hunger.
Bitter taste receptors are found in the oral cavity and stomach and it is the
receptor which bind to more than fifty percent of all the drugs
manufactured.
Read more about Bitter taste receptors here brainly.com/question/10733985
Tough outer coating; organelles are responsible for functions inside a cell.
Movement that support the animal, like its need to eat, to defend itself and more.
Homologous is a type of feature that is shared or inherited
from common ancestors.
