Tissues and Organs
Name the four kinds of tissue in the human body.
Epithelial, muscle, connective, and nervous
Define "homeostasis."
Something along the lines of..."the tendency of living things to maintain a relatively constant internal environment."
Define the term "anatomy."
The study of the pieces and parts of an organism
Epithelial tissue is referred to as "polarized." What does this mean? Use the terms basal and apical.
It has layers- outer layer and inner layer. It can't just be flipped
What is the main function of epithelial tissue? Why is this important to an organism?
Barrier to outside-
Helps regulate temperature, protect against pathogens, etc.
Contractions during childbirth and lactation are examples of which kind of feedback loop? Why is this mechanism effective for regulating these processes?
Positive feedback loop
Define the term "physiology."
The study of an organism's interaction with its environment.
What are the three kinds of muscle tissue?
Skeletal
Cardiac
Smooth
What is the difference between a tissue and an organ? How many types of tissue does a given organ contain?
Tissue: multiple cells
Organ: multiple tissues, at least 2, usually all 4
What are some adaptations the body uses to maintain homeostasis? Name 3 things the body must regulate to maintain homeostasis.
Shivering, sweating, etc.
Oxygen levels, blood glucose levels, temperature, pH, etc.
What is the hypothalamus? What does it regulate? What two important systems does it link?
Pituitary gland
Nervous system and endocrine system
What is the role of glial cells in the nervous tissue? What are nerves? Are they part of the central or peripheral nervous system?
Support cells
Nerves-bundles of axons from neurons
Peripheral nervous system
Which kind of muscle do these words/phrases describe?
Multiple nuclei, striated, fused
Skeletal muscle
What type of feedback loop is more common in the human body? Explain why.
Negative feedback loop
Compare and contrast signaling via the nervous system and endocrine system.
Nervous system: direct, cell to cell, fast
Endocrine system: indirect, wide reaching, slow
Name some examples of organs that contain epithelial tissue.
Skin, lungs, intestines, stomach, etc.
What type of tissue is blood? Explain why.
Connective tissue
What are the 4 steps of a feedback loop? Provide an example of each.
Stimulus
Sensor
Control
Effector
What do the following regulate?
Pineal gland
Thyroid/parathyroid
Adrenal glands
Sleep cycle
Metabolism
Immediate energy
Name 4 kinds of connective tissue.
Bone, tendon, ligament, adipose, cartilage, connective tissue