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.
25:100, 100:400, 2:8, etc
The best answer for the nurse to give is "You will be sedated but not asleep." Persons who are undergoing cardiac catheterization will receive a sedative but are not put to sleep. Their cooperation is needed during the procedure.
<h3>What is cardiac catheterization?</h3>
- During a cardiac catheterization procedure, a thin, flexible tube (catheter) is directed into a blood vessel to the heart in order to identify or treat certain heart disorders, such as blocked arteries or irregular heartbeats.
- The most common reason for performing this operation is to learn more about the heart or its blood arteries.
- Additionally, it could be carried out to determine whether you require heart surgery or to treat specific heart diseases.
- Cardiovascular catheterization may be used by your doctor to identify or assess: Cardiomyopathy or congestive heart failure causes.
- It takes a week or less for full recovery. For 24 to 48 hours, keep the region dry where the catheter was implanted. The recuperation process is frequently quicker if the catheter was placed into your arm.
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A. Midline 2 to 3 cm (0.8 to 1.2 in) above the symphysis pubis. Normal ultrasounds use sound waves to produce images, but unlike Doppler devices, they are unable to show blood flow.
The Doppler device ultrasonography is a non-invasive diagnostic that gauges the blood flow through your arteries by reflecting high-frequency sound waves off circulating red blood cells. Doppler ultrasound uses sound waves to monitor artery blood flow. It is used to examine the blood flow to the placenta, uterus, and unborn child throughout pregnancy.It has advantages when used in high-risk pregnancies where the health of the unborn child is a worry. Nowadays, most pregnant women have an ultrasound before 12 weeks. Typically, a fetal Doppler test is performed between weeks 13 and 28 of your second trimester.
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