Inflammation, production of interferon, and ingestion of pathogens by
phagocytes are non specific cellular responses by ?
The internal aspect of the innate immune system
what feature of the adaptive immune system decreases the amount of time it
takes for the body to respond to a particular antigen?
memory cells
Which of the following occurs in the cardiac cycle if the impulse triggered at the
sinoatrial node never reaches the Purkinje fibers of the heart?
The ventricles will not contract
Describe the link between damaged villi and malnutrition
Damaged villi decrease the nutrient-absorbing surface area in the gastrointestinal tract
What organ is responsible for the majority of the chemical digestion and
absorption of nutrients in the digestive system?
Small intestine
Contraction occurs when the thin ___ filaments slide past the thicker ____
filaments, causing the sarcomere unit to shorten or contract.
actin and myosin
The endocrine system is a collection of ductless glands that produce which of the
following responses
A slowly initiating but prolonged response on other body systems
Which gland has an exocrine function and aids in the regulation of blood glucose
pancreas
Which term refers to the middle layer of the skin that is made of connective
tisssue
Dermis
What is produced by the skin when a cholesterol based precursor is modified by
the presence of ultraviolet radiation?
Vitamin D
Which type of bone cells perform mineral resorption
osteoclasts
Inside of adult long bones, yellow bone marrow is located within which of the
following?
medullary cavity
What type of tissue serves to fasten and support body parts
Connective
What leaves the body via deferens
Gametes
What reproductive organs produces sperm in males and ova in females
Gonads
What is the term used to describe an action potential jumping from node to node
in an axon
Saltatory conduction