Phellem is a type of tissue formed on the outer side of the phellogen and is made of dead cells. Register at BYJU’S NEET to explore other... View Article
Oxygenated blood that is found in arteries is bright red, while blood drawn from veins appears much darker (with a reddish-purple tinge). ... View Article
Technically, blood is a mixture because it is made up of many individual components. These include plasma, RBC, WBC and platelets. Main Article:... View Article
Contrary to popular belief, human blood is red not because of the iron in haemoglobin. Instead, the actual reason for the colour of blood is... View Article
Gas exchange and blood circulation are important functions for life. Cells need oxygen for various metabolic processes; they also create carbon... View Article
Certain factors may prevent the release of ADH, these include alcohol consumption, diabetes insipidus or a tumour in the pituitary glands. Such... View Article
The lungs contain millions of units called alveoli. These units help in the exchange of oxygen and carbon dioxide in the body. Main Article:... View Article
Symptoms of high blood sugar (hyperglycemia) includes: Excessive thirst Increased frequency of urination Tiredness Shortness of breath Dry mouth... View Article
Kidneys have millions of filtration units called nephrons. In a nutshell, the blood flows into the kidneys through the renal artery, and it... View Article
Testes secretes testosterone, which is the primary sex hormone. Also Read: What are Hormones? Endocrine Glands and their Hormones Hormones... View Article
Ovaries release two groups of sex hormones and these include: Estrogen Progesterone Also Read: What are Hormones? Endocrine Glands and their... View Article
Follicle stimulating hormone and luteinising hormone are thought to stimulate the production of oestrogen. Also Read: What are Hormones?... View Article
Changes in estrogen levels as well as other factors can trigger menarche. Moreover, scientists theorize that other hormones such as leptin are... View Article
Sertoli cells secrete peptide hormone inhibin B. Also Read: What are Hormones? Endocrine Glands and their Hormones Hormones In Animals Plant... View Article
The utricle is an organ in the inner ear which maintains stability of the head and body when it is motionless or during linear movements. It does... View Article
Aldosterone is responsible for retaining sodium, which in turn provokes water retention, and eventually leads to high blood pressure. Also... View Article
There are several parts of the brain which affect sleep. The hypothalamus is thought to contain nerve cells which control sleep regulation. Also... View Article
Thyroid hormone T4 is thought to have the longest half-life, between 5 - 7 days. Also Read: What are Hormones? Endocrine Glands and their... View Article
Melatonin is known to control sleep patterns. Main Article: Melatonin Hormone - Functions, Hormonal Levels and Melatonin Test Also Read: What... View Article
