The part of the alimentary canal that connects the throat to the stomach; the gullet.
An organ system that coordinates the activities of muscles, monitors organs, constructs and processes data received from the senses, and initiates actions.
blood vessel that conveys blood from the heart to any part of the body
The system of organs serving for respiration.
the lower part of the alimentary canal, extending from the pylorus to the anus
A muscular organ that pumps blood through the body, traditionally thought to be the seat of emotion.
any of various internally secreted compounds, as insulin or thyroxine, formed in endocrine glands, that affect the functions of specifically receptive organs or tissues when transported to them by the body fluids.
A system of organs for the purpose of digesting food.
It includes organs such as the thymus, the spleen and lymph nodes; tissue such as bone marrow, and lymphoid tissues such as the tonsils; cells such as lymphocytes including the B cells and T cells, and cell products such as antibodies.
the system of branching vessels or tubes conveying blood from various parts of the body to the heart.
It includes organs such as the thymus, the spleen and lymph nodes; tissue such as bone marrow, and lymphoid tissues such as the tonsils; cells such as lymphocytes including the B cells and T cells, and cell products such as antibodies.
any of various internally secreted compounds, as insulin or thyroxine, formed in endocrine glands, that affect the functions of specifically receptive organs or tissues when transported to them by the body fluids.
An organ system that coordinates the activities of muscles, monitors organs, constructs and processes data received from the senses, and initiates actions.