Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Shadae Prophete
Physiology Week 1 to 6
| Question | Answer |
|---|---|
| Molecules are: | Atoms combined to form larger chemical aggregates Why: Molecules are formed when atoms bond together. |
| A plane that divides the body into anterior and posterior portions is: | Coronal (frontal) Why: Coronal/frontal separates front/back. |
| Several similar cells specialized for a function are called a(n): | Tissue Why: Tissues are groups of similar, specialized cells. |
| The neck is _____ to the right shoulder. | Medial Why: The neck lies closer to midline (medial) than the shoulder. |
| The plane dividing the body into superior and inferior parts is: | Transverse Why: Transverse (horizontal) splits upper/lower. |
| The smallest living units of structure and function are: | Cell Why: Cells are the basic living units. |
| In anatomical position, the wrist is _____ to the elbow. | Distal Why: The wrist is farther from the trunk than the elbow → distal. |
| A frontal section divides the body into: | Front and back Why: Frontal/coronal = anterior/posterior. |
| The “powerhouse” of the cell is the: | Mitochondrion Why: Mitochondria generate ATP. |
| How many abdominal regions are there? | 9 Why: The abdominopelvic region scheme uses 9 regions. |
| The abdominopelvic cavity contains all except the: A. Stomach B. Pancreas C. Heart D. Reproductive organs | The heart Why: The heart is in the thoracic cavity (mediastinum). |
| To image the liver, which regions must be included? A. Right hypochondriac, epigastric, left hypochondriac B. Right hypochondriac, right lumbar, right iliac C. Right iliac, hypogastric, left iliac D. Right lumbar, umbilical, left lumbar | Right hypochondriac, epigastric, left hypochondriac Why: The liver spans right hypochondriac and epigastric; sometimes abuts left hypochondriac superiorly. |
| Which does not describe anatomical position? A. Head facing forward B. Body standing erect C. Pinky lateral to thumb D. Arms at sides, palms forward | Pinky lateral to thumb Why: In anatomical position, the thumb is lateral; pinky is medial. |
| Mitochondria, Golgi, and ER are: | Organelles Why: They’re membranous organelles. |
| The mediastinum contains all except: A. Trachea B. Venae cavae C. Right lung D. Esophagus | Right lung Why: Lungs are in the pleural cavities, not mediastinum. |
| The gallbladder lies in the: | Abdominal cavity Why: It’s in the right upper quadrant of the abdomen. |
| Two major body cavities are: | Ventral/dorsal Why: Dorsal and ventral are the primary cavities. |
| The abdominal quadrants are centered on the: | Umbilicus Why: Umbilicus is the midpoint. |
| An organ is one level above a(n): | Tissue Why: Cells → tissues → organs → systems. |
| “Popliteal” refers to the: | Area behind the knee Why: Popliteal fossa is posterior knee. |
| Which bond is weakest? | Hydrogen Why: Hydrogen bonds are weak individually. |
| The octet rule states atoms are most stable when: | Outer shell has eight electrons Why: 8 valence electrons = stability (except H/He). |
| Hydrolysis is: | Catabolic reaction Why: Hydrolysis breaks large molecules → smaller (catabolism). |
| A solution with more OH⁻ than H⁺ is: | Alkaline (basic) Why: Excess OH⁻ = basic. |
| The litmus change in a base: | Red → turns blue Why: Bases turn red litmus blue. |
| The nucleus contains all of the following except: A. Chromatin B. Nucleolus (rRNA) C. Ribosomal subunits assembling D. Lysosomal enzymes | Lysosomal enzymes Why: Lysosomal enzymes are in lysosomes, not nucleus. |
| The organelle that packages and ships proteins is: | Golgi apparatus Why: Golgi modifies/sorts/ships. |
| Tissue most widespread in the body: | Connective Why: Connective tissue is most abundant/widespread. |
| Cartilage heals slowly because it: | Lacks a direct blood supply Why: Avascular → slow repair. |
| The bone that articulates with the temporal bone in the only movable skull joint is: | Mandible Why: TMJ = temporal–mandibular joint (movable). |
| What triggers muscle contraction? | Calcium release from the sarcoplasmic reticulum, allowing myosin to bind to actin (excitation-contraction coupling). |
| What causes muscle fatigue? | Depletion of ATP and accumulation of lactic acid, reducing the muscle’s ability to contract. |
| Describe the process of an action potential. | Rapid depolarization (Na⁺ influx) followed by repolarization (K⁺ efflux) that transmits nerve impulses. |
| How do neurotransmitters function? | They transmit signals across synapses by binding to receptors on target cells, triggering responses. |
| How do hormones regulate body functions? | Hormones act as chemical messengers, altering metabolism, growth, and homeostasis in target cells. |
| What is the difference between endocrine and exocrine glands? | Endocrine glands release hormones into the bloodstream; exocrine glands secrete through ducts. |
| How do negative feedback loops regulate hormones? | Rising hormone levels inhibit further release, maintaining balance (e.g., insulin-glucose regulation). |
| What is bone remodeling and why is it important? | It’s the continuous process of bone breakdown and formation that strengthens bones and regulates calcium levels. |
| How does the skin participate in temperature regulation? | Through sweat production, blood vessel dilation, and constriction to control heat loss or retention. |
| How does vitamin D synthesis occur physiologically? | UV light triggers a reaction in the skin that starts the conversion of cholesterol into vitamin D. |
Created by:
user-1973629