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 North Vietnamese government and the Viet Cong were fighting to reunify Vietnam under communist rule. They viewed the conflict as a colonial war, fought initially against forces from France and then America, and later against South Vietnam.he People's Army of Vietnam, also known as the North Vietnamese Army (NVA), engaged in a more conventional war, at times committing large units to battle. As the war continued, the part of the Viet Cong in the fighting decreased as the role of the NVA grew.