APHY 101 MIDTERM EXAM 2024 QUESTION AND CORRECT ANSWERS CHAPTER 1-

APHY 101 MIDTERM EXAM 2024 QUESTION AND CORRECT ANSWERS CHAPTER 1-

6 REAL EXAM IVY TECH COMMUNITY COLLEGE INDIANAPIOS

Chapter 1 • Explain the difference between the study of Anatomy and the study of Physiology?

• Anatomy – “a cutting up” examines the structures, or morphology, of body parts their forms &

organization

• “ Relationship to nature” considers the functions of the body parts what they do & how they do it

• Name and define the levels of organization of life?Simplest to most complex

• Organelle, cells, tissues, organs, organ system, organism

• Define metabolism.

• Physiological events that obtain,release, & use energy are largely part of metabolism of all the

chemical reactions in an organism that support life

• Define homeostasis? How does a homeostatic mechanism maintain homeostasis?

• Tendency toward a relatively stable equilibrium between interdependent elements, especially as

maintained by physiological process

• What is meant by negative feedback? How does negative feedback affect homeostatic mechanisms?

• Negative feedback is a reaction that causes a decrease in function. It occurs in response to some kind of

stimulus. Often it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostatis, as in biology, or equilibrium, as in mechanics • Know the locations of the major body cavities. Be familiar with major organs within each cavity. 2. Cranial Cavity

• Spinal Cavity
• Pleural Cavity
• Pleural Cavity
• Diaphragm
• Abdominal Cavity
• Pelvic Cavity

• Describe the structure of a serous membrane?

• Each serous membrane is composed of a secretory epithelial layer and a connective tissue layer

underneath. The epithelial layer, known as mesothelium, consists of a single layer of avascular flat nucleated cells (simple squamous epithelium) which produce the lubricating serous fluid

• (Referring to section 7) What are signs of aging at the cellular level?

• What is meant by Anatomical Position?

• The body is assumed to be standing, feet together, arms to the side and head, eyes, and palms of

hands facing forward 1 / 2

• *Know the meaning of the common anatomical terms presented in the textbook for relative position (such as medial vs. lateral, proximal vs. distal, etc.).

• Superior – above, over
• Inferior – below, under
• Medial – toward the side, away from midline
• Proximal – near, closer to the origin
• Distal – away from, farther from the origin
• Superficial – more external
• Deep – more internal
• Sagittal plane – vertical plane through body, divides right from left
• Midsagittal – sagittal plane that divides body into equal left & right regions
• Parasagittal plane – divides body into unequal right & left regions
• Frontal plane/Coronal plane – divided anterior & posterior region
• Transverse – horizontal plane, divides midsection into superior & inferior regions

Chapter 2 • Explain why Chemistry is an important part of the study of Physiology.

• Chemistry is important to this study because physiological responses in the body are are controlled

by chemical reactions, everything form thinking, to muscle contraction to digestion is controlled by chemical reactions and signals

• Define atom, element, molecule, and compound.

• Atom – smallest unit of an element that has the chemical properties of an element
• Element 0 simplest examples of matter with specific chemical properties
• Molecule – 2 or more atoms may combine to form a distinctive type of particles
• Compound – 2 or more separate elements

• Name the bulk elements of the human body.

• Oxygen, carbon, hydrogen, nitrogen, calcium, phosphorus

• What do Atomic Number and Atomic Weight of an atom represent?

• Element is equal to the number of protons in each atom
• Equal to the number of protons plus the # of neutrons in each atom

• Define ion? How do we indicate in a molecular formula if an atom is an ion?

• An atom or molecule with a net electric charge due to the loss or gain of one or more electrons
• Molecule with extra electrons has a negative charge

• Define isotope?

• Atoms with the same atomic number but different atomic weights
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