Cells and Tissues
The sum total of all chemical reactions in the body
What is Metabolism?
The outermost layer of the skin.
What is the Epidermis?
The term for the cell membrane of a skeletal muscle cell.
What is the Sarcolemma?
Chemical messengers used by the endocrine system.
Thick-walled blood vessels that carry blood away from the heart.
What are Arteries?
The ability of the cell membrane to regulate what passes through it.
What is Selective Permeability?
This type of sweat gland is activated when body temperature rises.
What are Eccrine Sweat Glands?
The thin myofilament.
What is Actin?
This class of hormone has receptors found in the nucleus of the target cell.
What are Steroid Hormones?
The pacemaker of the heart, located in the right atrium.
What is the Sinoatrial Node?
The organelle which produces ATP using cellular respiration.
What is the Mitochondria?
The term for the shaft of a long bone.
What is the Diaphysis?
The synapse between a motor neuron and a skeletal muscle cell.
What is the Neuromuscular Junction?
The molecule in a red blood cell responsible for transporting oxygen.
What is Hemoglobin?
The tiny blood vessels which allow gas and nutrient exchange to take place.
What are Capillaries?
This is where DNA is stored in the cell.
The type of bone which reduces the weight of the skeleton.
What is Spongy Bone?
The division of the nervous system made up of the brain and spinal cord.
What is the Central Nervous System?
This type of blood cell defends the body against pathogens.
Thin-walled air sacs in the lungs where gas exchange occurs.
What are Alveoli?
This type of tissue lines and protects structures of the body.
What is epithelial tissue?
The type of bone cell that builds/produces bone.
What are Osteoblasts?
The movement of these two ions create the action potential of a neuron.
What are Sodium and Potassium?
The fluid portion of the blood.
What is Plasma?
This secretion prevents the walls of the alveoli from sticking together so the lungs do not collapse.
What is Surfactant?