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Physiology with Lab
Midterm Point
| Question | Answer |
|---|---|
| Negative-feedback mechanisms: | Maintain homeostasis. |
| Epidemiology is the study of the _____ of diseases in human populations. A. Occurrence B. Distribution C. Transmission D. All of the above. | All of the above. |
| Pathogenesis can be defined as: | The course of disease development. |
| If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions? | Oxytocin would inhibit uterine contractions. |
| Intrinsic control: | is sometimes called autoregulation. |
| Shivering to try to raise your body temperature back to normal would be an example of: A. The body trying to maintain homeostasis. B. A positive-feedback mechanism. C. A negative-feedback mechanism. D. Both A and C. | Both A and C. |
| Which of the following is a basic component of every feedback control loop? A. Sensor Mechanical B. Integrating center C. Effector D. Feedback E. All of these are component of a feedback control loop. | All of these are component of a feedback control loop. |
| A triglyceride is composed of a glycerol molecule and three of the same type of fatty acid. | True |
| Which of the following is polymer of glucose that is sometimes referred to as animal starch? | Glycogen |
| The lipid that is often referred to as a tissue hormone is. | prostaglandin. |
| All proteins have which four elements? | Carbon, oxygen, hydrogen, and nitrogen |
| In the electron transport system, the final electron acceptor is. | Oxygen. |
| RNA makes proteins by? | Translation |
| Extensive weight training causes the muscle cells to: | Hypertrophy. |
| Diffusion requires: | A concentration gradient. |
| A DNA molecule is characterized by all of the following except: | Ribose sugar. |
| Diffusion of particles through a membrane by means of a carrier molecule is called: | Facilitated diffusion. |
| The pairing of bases of a strand of DNA is obligatory. If a strand of DNA were composed of the base sequence of ATCG, what would be the obligatory sequence of its opposing base pairs? | TAGC |
| If a sequence of nitrogen bases in nucleic acid were A-U-C-G-A, which of the following would be true about the nucleic acid? | It contains ribose sugar. |
| When the chromosomes align themselves across the equator of the spindle fibers, it is characteristic of which phase of mitosis? | Metaphase |
| The physical process by which water and solute move through a membrane when a hydrostatic pressure gradient exists across the membrane is the process of: | filtration. |
| Water will move through the cell membrane by: | Osmosis. |
| Areolar tissue usually contains which types of cells in the greatest number? | Fibroblasts. |
| The hypodermis: | connects the dermis to underlying tissues. |
| Which is not a function of connective tissue? | Communication. |
| What is are the two types/functions of bone marrow? | Red & yellow – produces red blood cells and stores energy as fat. |
| Which of the following is NOT CONSIDERED a long bone. A. Radius B. Fibula C. Tibia D. C5 Vertebral Body | C5 Vertebral Body. |
| Adipocytes, found in the yellow bone marrow, stores and releases ____________________________ for energy. | Fat and triglycerides. |
| Which of the following provide flexibility and smooth surfaces for movement? | Cartilages. |
| Blood calcium levels involve secretion of which two hormones? | parathyroid and calcitonin. |
| When the knee is flexed, the patella can be easily distinguished. | complex calcium salts are deposited in the matrix. |
| When the knee is flexed, the patella can be easily distinguished. | False. |
| The primary ossification center of a long bone is located: | in the diaphysis. |
| As the activity of osteoblasts increases, the: | level of calcium in the blood decreases. |
| Normally, bone loss will begin to exceed bone gain between the ages of _____ years. | 35 and 40 |
| The shoulder joint is an example of a _____ joint. | Ball and socket. |
| The joints between the articulating surfaces of the vertebral processes are classified as what type of joint? | Gliding. |
| The energy required for muscular contraction is obtained by hydrolysis of. | ATP. |
| Which of the following is not among the structures that characterize synovial joints? | Tendons. |
| The largest and most commonly injured joint in the body is the _____ joint. | Knee |
| Three phases of the twitch contraction are the? | Latent period, contraction phase, and relaxation phase. |
| Painful muscle contractions or involuntary twitches are called: | Cramps. |
| Stretching the foot down and back and pointing the toe is called: | Plantar flexion. |
| Which of the following is not one of the major functions of muscles? | Protection. |
| The lactate produced by anaerobic respiration is converted back to glucose in the: | Liver. |
| Skeletal muscles are innervated by: | Somatic motor neurons. |
| Which of the following statements about cardiac muscle is incorrect? | Cardiac muscle requires nervous stimulation to contract. |
| Thick myofilaments extend the length of the: | A-band. |
Created by:
juliopez83
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