Answer:
Spermatogonia , Primary Spermatocyte, Secondary Spermatocyte, Spermatids and Spermatozoa.
Explanation:
Seminiferous tubules are the main site for spermiogenesis. The two main cells included in the seminiferous tubules are germ cells which produce sperms another one is the Sertoli cells which nurture the germ cells throughout the developement process.
There are 3different phases described below:
1. Proliferative Phase: Spermatogonia i the basal region of the tubular epithelium undergo mitosis. Spermatogonia divide to give rise to primary spermatocytes. All descendants of a B spermatogonium remain connected by cytoplasmic bridges, forming a syncytium - like cell clone which undergoes synchronous development.
2. Meiotic Phase:Each primary spermatocyte divides to give rise to two short-lived secondary spermatocytes, which in turn give rise to two spermatids each. The spermatids contain a haploid number of chromosomes (half the number of a somatic cell). Primary spermatocytes are the largest cells in the spermatogenic series and are located approximately midway within the seminiferous epithelium.The process of meiosis occurs over a long period, with prophase of the first meiotic division taking up to three weeks
3. Differentiation phase
This phase is also known as spermiogenesis.
Spermatids undergo transformation into spermatozoa. Many changes occur within the cells, the three major ones being:
i) formation of the acrosome, which covers the cranial part of the head. The acrosome will contain hydrolytic enzymes to allow fusion of sperm and egg for fertilisation.
ii) condensation of nuclear chromatin in the head to form a dark-staining structure
iii) growth of the tail opposite the acrosome, and loss of excess cytoplasmic material which is shed as a residual body. The body is phagoctosed by the Sertoli cells..
It’s important to a good and long living life.
The correct answer is; Insurance plans that are sold on the Marketplace, "most" small group and individual plans, and all state Medicare plans must provide some mental health services. The act states that there must be more than 50 workers.
Further Explanation:
The Mental Health Parity Act began in 1996 and the Mental Health Parity and Addiction Equity Act began in 2008. The MHPA of 1996 was started to help people with mental health issues get the needed help. This prevents insurance companies and any HMOs to place place limits, either annually or lifetime, that are on a plan with surgical and medical benefits on the plan.
Under this law, there is a a limit on how many days a patient can stay in an inpatient setting, outpatient appointments, raising the deductible on the insurance, and also the prescription psych medications.
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A 13-year-old adolescent with hyperthyroidism over time, excessive, untreated hyperthyroidism can result in an abnormal heartbeat, which in flip can cause troubles that include blood clots, heart failure, and stroke. over again, a remedy for hyperthyroidism is vital to preventing coronary heart troubles in humans with Graves' ailment, says Mikhael.
Hyperthyroidism (overactive thyroid) takes place while your thyroid gland produces an excessive amount of the hormone thyroxine. Hyperthyroidism can accelerate your body's metabolism, inflicting unintended weight reduction and a speedy or abnormal heartbeat. several remedies are to be had for hyperthyroidism.
Hyperthyroidism is treatable. some causes may work away without treatment. Hyperthyroidism due to Graves ailment usually receives worse through the years. It has many complications, some of which might be excessive and affect great of life.
if you have hyperthyroidism, you could find yourself feeling warm whilst you sleep or laid low with nighttime sweats. keeping your room cool will not simplest help your body loosen up and doze off, but, can also help prevent you from waking up covered in sweat.
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