A hollow muscular organ that pumps the blood through the circulatory system.
The heart
100
A framework of bone or cartilage enclosing the brain of a vertebrate; the skeleton of a person's or animal's head.
A skull
100
The body part that lets your body take in oxygen in order to breathe.
lungs
100
the principal and most anterior part of the brain in vertebrates, located in the front area of the skull.
The cerebrum?
100
a muscular tube connecting the throat with the stomach in order to pass food from the mouth.
The esophagus
200
The largest the artery in the body. The heart pumps blood from the left ventricle into it through the aortic valve.
The aorta
200
The long bone in the upper arm between the elbow joint and the shoulder.
A humerus bone
200
The large air filled space above and behind the nose in the middle of the face.
The nasal cavity
200
the main pathway for information connecting the brain and peripheral nervous system
the spinal cord
200
a muscular organ located on the left side of the upper abdomen. The stomach receives food from the esophagus.
the stomach
300
Any of the muscular-walled tubes forming part of the circulation system by which blood that has been oxygenated moves from the heart to all parts of the body
A artery
300
The series of slender curved bones articulated in pairs to the spine, protecting the thoracic cavity and its organs.
The rib
300
a dome-shaped, muscular partition separating the thorax from the abdomen in mammals. It plays a major role in breathing, as its contraction increases the volume of the thorax and so inflates the lungs
The diaphragm
300
a structure containing a number of nerve cell bodies, typically linked by synapses, and often forming a swelling on a nerve fiber
a ganglion
300
a large lobed glandular organ in the abdomen of vertebrates, involved in many metabolic
the liver
400
Any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.
A vein
400
the thinner and longer of the two bones in the human forearm, on the side opposite to the thumb
The ulna bone
400
a large membranous tube reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and conveying air to and from the lungs; the windpipe.
The trachea
400
a whitish fiber or bundle of fibers in the body that transmits impulses of sensation to the brain or spinal cord, and impulses from these to the muscles and organs.
a nerve
400
a pear-shaped, hollow structure located under the liver and on the right side of the abdomen. It stores and concentrates bile, a yellow-brown digestive enzyme produced by the liver.
the gall bladder
500
the artery that carries blood from the right ventricle of the heart to the lungs for oxygenation
The pulmonary artery?
500
The longest, strongest bone in your body also known as the "thigh bone"
The femur bone
500
a flap of cartilage at the root of the tongue, which is depressed during swallowing to cover the opening of the windpipe.
The epiglottis
500
the part of the brain at the back of the skull in vertebrates. Its function is to coordinate and regulate muscular activity.
The cerebellum
500
a large gland behind the stomach and next to the small intestine. It releases powerful digestive enzymes to help digest food