Tissues of the Body
This tissue type lines body cavities and covers body surfaces.
What is epithelial tissue?
The brain and spinal cord make up the central nervous system, and these make up the peripheral nervous system.
What are nerves?
This muscular tube directs a bolus of food toward the stomach.
What is the esophagus?
This is the liquid part of blood that carries particles such as nutrients and ions.
What is plasma?
Biologists tell us this is the smallest unit of life.
What is a cell?
This connective tissue structure attaches from muscle to bone.
What is a tendon?
This most primitive brain region is where functions vital to life (like heart rate and blood pressure) are established.
What is the brainstem?
This is the fancy name for the rhythmic smooth muscle contractions that move food through the gastrointestinal tract.
What is peristalsis?
This chamber of the heart receives blood that has just been pumped through the bicuspid valve.
What is the left ventricle?
Of synovial, fibrous, or cartilaginous, these are the most moveable of our joints.
What is synovial?
Because of its special structure, this tissue type can stretch, contract, and respond to the nervous system.
What is muscle tissue?
The three types of muscle tissue are cardiac, smooth, and this.
What is skeletal?
Villi and microvilli make this digestive system structure specialized to absorb nutrient molecules from the lumen into the bloodstream.
What is the small intestine?
These lung air sacs are where carbon dioxide diffuses out of the bloodstream and oxygen diffuses into the bloodstream.
What are the alveoli?
These cell organelles are the powerhouses because they are the producers of the energy molecule ATP.
What are mitochondria?
This tissue type makes up the brain and spinal cord.
What is nerve tissue?
These chemicals play an essential role in how the nervous system generates emotion, thought, memory, and muscle movement.
What are neurotransmitters?
Of liver, gall bladder, pancreas and stomach, which is NOT an accessory organ of digestion?
What is the stomach?
This connective tissue structure that ensures blood flows only in one direction, can be found in the heart between the right atrium and the right ventricle.
What is the tricuspid valve?
Negative feedback loops are the main way that this very important mechanism in the human body is maintained.
What is homeostasis?
This tissue type includes the adipose tissue that forms a layer of insulation just beneath the skin.
What is connective tissue?
When skeletal muscles contract, the protein myosin binds to this protein in order for the sarcomere to shorten.
What is actin?
Of mechanical digestion or chemical digestion, the one that involves amylases, proteases, and lipases.
What is chemical digestion?
Asthma is a condition that involves spasm of the smooth muscle in these small airways that lead directly to the air sacs of lungs.
What are the bronchioles?
This term can be used for any two things in the body that have opposite roles, actions, or effects.
What is antagonistic?