Answer:
Spermatogenesis , Spermatogonia
Explanation:
Gonads are the primary sex organs in the male which are the two testes.
Each testis divide into testicular lobules each containing the sparse connective tissue with the endocrine interstitial cells that secrets testosterone, and also contains one to four highly convoluted seminiferous tubules which is responsible for sperm production.
The process is known as <u>spermatogenesis</u>.
This process begins with mitotic division of stem cells which are located close to basement membrane of tubules. The cells are known as <u>spermatogonial stem cell</u>s. The division produces two types of cells.
Type A cells are the cells which replenish stem cells and type B cells are the cells which differentiate into spermatocytes. They have number of chromosomes = 46.
Answer:
The correct answer would be - giving oral antihistamines or stop taking penicillin.
Explanation:
As there is no shortness of breathing, breath sound is clear which means there is no obstruction. Blood pressure of the patient is also almost normal and there is no sign of less body oxygen as the oxygen saturation is 96%.
She only experiencing rashes and itching that is start after taking penicillin which is mot likely due to allergy to the penicillin which takes place in 1 out of 15 people that take ampicillin or penicillin. This type of allergy can be treated by the antihistamines such as cetirizine or by stop taking the medication causing it.
Answer:
Most likely he has injured his <u>Calcaneal tendon</u> and the bulge is <u>triceps surae or calf muscle.</u>
Explanation:
The calcaneal tendon is the thickest tendon, which is present at the back of the lower leg and begins at the middle of the calf. It is covered with skin and fascia and connects the bones with the muscles.
The calf muscles or the triceps surae, are the muscles present in the calf of the leg.The calf muscles act via the tendon and cause flexion of the knee and the ankle.
<u>While exercising, an overuse of the calcaneal tendon, can result in pulling of the calf muscles from the Achilles tendon. Thus causing a tear in the calf muscle, which appears like a bulge.</u>
Answer: Option A. "Cytoskeleton"
Explanation:
Cytoskeleton can be defined as the network of protein filaments in the cytoplasm eukaryotic cells interlinking from cell nucleus to cell membrane.
There are three basic types of protein fibers present in cytoskeleton that includes micro filaments (Actin filaments ), microtubules and intermediate filaments.
Microfilaments are consist many linked monomers of a protein known as actin, that combines in a double helix with a diameter of about 7 nano-meter and functions as serving tracks for myosin (motor protein).
Microtubules are arranged in a form of hollow straw like structure made up of consist of tubulin proteins having diameter of about 25 nano-meter and further consist of two subunits, α-tubulin and β-tubulin.
Intermediate filaments are the cytoskeletal element which are made up of multiple strands of fibrous proteins wounded together having an average diameter of 8 to 10 nano-meter.
