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Physiology Weeks 1-6
| Extrinsic control usually involves which mode of regulation? | Endocrine |
| Intrinsic control is sometimes called | Autoregulation |
| This is NOT one of the basic components in a feedback loop | Transmitter |
| Which of the following is a basic component of every feedback control loop? a) Sensor mechanism b) Integrating center c) Effector d) Feedback e) All of these are components of a feedback control loop | e) All of these are components of a feedback control loop |
| What term is often used to describe certain arrangements of atoms attached to the carbon core of many organic molecules? | Functional group |
| DNA and RNA are important because | They serve as catalysts |
| Which lipid is part of Vitamin D? | Prostaglandins |
| The type of lipoprotein associated with "bad" cholesterol and the production of atherosclerotic changes in blood vessels is: | LDL |
| Which of the following is the result of meiosis? a) Two daughter cells that are identical to the parent cell b) Two daughter cells that are haploid c) Four daughter cells that are identical to the parent cell d) Four daughter cells that are haploid | c) Four daughter cells that are identical to the parent cell |
| If red blood cells containing 10% solute are placed in a solution containing 10% solute, what will happen? | Water will move into and out of the cells at equal rates |
| Which is NOT true about the sodium and potassium pump? a) It uses cellular energy b) Sodium moves into the cell and potassium moves out of the cell c) A carrier system is used d) It can move substances against their concentration gradient | b) Sodium moves into the cell and potassium moves out of the cell |
| Transcription can be best described as the: | Synthesis of mRNA |
| In which skin layer does the process of keratininzation begin? | Stratum spinosum |
| Which skin layer is called the "barrier area"? | Stratum granulosum |
| Which type of connective tissue helps newborns maintin body temperature by producing heat? | Brown fat |
| Connective tissue forms from stem cell tissue called | Mesenchyme |
| What best describes the axial skeletal structure? | Provides framework for muscles that anchor and stablize the appendicular bones |
| True or False Hematopoietic stem cells that are found in red bone marrow can develop into a variety of different blood cells, including red blood cells, white blood cells, and platelets. | True |
| Bones act as a resevoir for which minerals? | Calcium and Phosphorous |
| In the epiphyseal plate, the zone of hypertrophy is in the ______ layer | Third |
| The shoulder joint is an example of a _____________ joint a) Multiaxial b) Freely movable c) Ball and Socket d) The shoulder joint is an example of all of these | d) The shoulder joint is an example of all of these |
| Which is NOT among the structures that charaterize synovial joints? | Tendons |
| Thick myofilaments extend the length of the | A-band |
| The strength of a muscle contraction is influenced by the: a) Amount of load b) Initial length of muscle fibers c) Recruitment of motor units d) All of the above are correct | d) All of the above are correct |
| The first event to occur in muscle relaxation is | The sarcoplasmic reticulum (SR) begins actively pumping calcium back into its sacs |
| The ability of muscle cells to respond to nerve stimuli is called | Irritability |
| Which of the following is NOT a part of the neuromuscular junction? a) T-tubules b) Motor neuron c) Motor end plate d) All of the structures are part of the neuromuscular junction | a) T-tubules |
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