Immune System.
Yes, the skeletal system is considered an organ system. It is made up of bones, cartilage, and ligaments that work together to provide structural support, protect internal organs, and facilitate movement.
The stomach is considered an organ, and it is part of the digestive system.
Examination of the back is considered a body area examination because it focuses on a specific region of the body rather than a specific organ system. It involves assessing the skin, muscles, bones, and nerves of the back to evaluate for any abnormalities or issues.
Yes, blood is not considered an organ of the cardiovascular system. Blood is a fluid connective tissue that circulates through the cardiovascular system, which consists of the heart and blood vessels.
The first organ to develop in the embryo is the heart. In a fetus, there is a brain, but it isn't fully developed and can't understand signals from the nervous system. Therefore the first functional organ would be the heart. But the first thing to start developing in a fetus is the nervous system. ( no that isn't an organ )
the immune system
Yes, the nervous system is considered one of the organ systems in animals.
Lungs and respiratory system
Yes, the skeletal system is considered an organ system. It is made up of bones, cartilage, and ligaments that work together to provide structural support, protect internal organs, and facilitate movement.
The stomach is considered an organ, and it is part of the digestive system.
The cardiovascular system is considered endothermic because it helps regulate body temperature by distributing heat produced by metabolism. The integumentary system, which includes the skin, is considered exothermic because it helps release heat from the body to the external environment.
The skeletal system is considered an organ system. It is made up of different organs and tissues working together to perform a body function.
It is not an organ system. Bones are not organs. It does help protect some organs, like the brain being inside the skull, but it is not part of an organ system.
Rectum
No there is not a skin system in the human body.
The thymus is the lymphatic system organ that involutes and becomes non-functional as aging occurs. It is responsible for T cell maturation, but its activity declines with age, leading to reduced immune function.
It's spelled skeletal system. And yes.