Human endocrine glands are essentially identical to dog and cat endocrine glands, both in structure and function. The endocrine glands include the pituitary gland, thyroid gland, parathyroid glands, pancreas, adrenal glands, ovaries, and testes.he parathyroid glands are four small glands located adjacent or within the thyroid gland. These glands secrete parathyroid hormone (PTH). PTH helps maintain normal calcium and phosphorous levels in the body and is necessary for proper bone development.
The Vietcong The Vietnamese Communists, or Vietcong, were the military branch of the National Liberation Front (NLF), and were commanded by the Central Office for South Vietnam, which was located near the Cambodian border. For arms, ammunition and special equipment, the Vietcong depended on the Ho Chi Minh trail.
The Viet Cong and the People's Army of Vietnam (PAVN or North Vietnamese Army) used well-organized logistics methods to supply and equip their fighting forces.This logistics organization helped greatly in their war against the American and South Vietnamese military during the Vietnam War.The Viet Cong's full-time soldiers were referred to as the Main Force (Chu Luc).he term NVA identifies regular troops of the North Vietnamese Army as they were commonly known by their Western opponents. Collectively, both forces were part of PAVN, People's Army of Vietnam, which made up all armed forces of North Vietnam.