body systems 1
This is the main organ in the respiratory system where gas exchange takes place.
The lungs.
this part of the skeleton is composed of several bones and protects the brain
the skull. known as the cranium.
definition for digestive system.
responsible for breaking down foods.
what is cytoplasm?
the gelatinous liquid that fills the inside of a cell.
what are body cavities?
the spaces within the body that contain the internal organs or viscera.
What are skeletal, smooth, and cardiac?
The three types of muscle tissue found in the human body.
These disc shaped cells transport oxygen from the lungs to the other parts of the body.
red blood cells.
what is the immune system?
helps the body fight infections and diseases.
What are chloroplasts?
specialized organelles in plant and algal cells that perform photosynthesis, converting light energy into chemical energy (sugars) and releasing oxygen
what is abdominial cavity?
part of the ventral. containing stomach, liver, gallbladder, etc.
What is a tendon?
The strong cord of fibrous tissue that attaches a muscle to a bone.
The tiny finger-shaped structures that cover the inner surface of the small intestine and provide a large surface area through which digested food is absorbed.
villi
What is the nervous system?
it helps the body communicate with others.
what do you call network of proteins that support and gives shape to a cell.
cytoskeleton
which body cavity contains the brain?
Cranial cavity.
What is the central nervous system?
The brain and spinal cord make up this main division of the nervous system.
what are ligaments?
this is the type of tissue that connects bones to each other at joints
Define the musculoskeletal system.
movement, posture, and physical abilities.
what organelles can be found in the cytoplasm and on the surface of the endoplasmic reticulum?
ribosomes.
This cavity is located in the chest and is protected by the rib cage.
thoracic cavity.
What are arteries?
These blood vessels carry oxygenated blood away from the heart.
Describe what the muscular system does.
enables movement, maintains posture, and puts heat through muscle contractions.
definition of circulatory system.
transports oxygen and nutrients to all corners of the body.
what is the term for the diffusion of water across a semipermeable membrane?
osmosis
this cavity contains the spinal cord.
vertebral cavity