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Navneet Kaur
Anatomy wk 1-6
Question | Answer |
---|---|
Two major cavities of the human body are? | the dorsal cavity and the ventral cavity |
Which is the following is not a cytoskeleton element? | Centriole |
The Strongest and most durable type of Cartlidge is? | Fibrocartilage |
The external ear is composed of ? | Elastic Cartlidge |
The most superficial layer of the epidermis | Stratum Corneum |
There are more then 600 muscles in the body | True |
Organs that attach to & cover bony skeleton. | Skeletal muscles |
What is the most distinguishing functional characteristic of muscles? | Ability to change ATP into directed mechanical energy. |
There are __ types of muscle tissue. Name them. | Skeletal, cardiac, & smooth. |
Origin End of a muscle attached to bone - | doesn't move much. |
Skeletal & smooth muscle cells - not cardiac - are elongated & called __. | Muscle Fibers. |
3 keywords regarding skeletal muscle tissue? | Skeletal, striated, & voluntary. |
Insertion | Other side of muscle attached to bone that moves most. |
Synergistically | Working together. |
Antagonistically | Works in opposition. |
Actin | Globular protein that can contract. |
Myosin | Protein with two heads & a tail. |
Longest muscle cells. | Skeletal muscle fibers. |
Meaning of prvixes "myo" or "mys". " | Muscle |
Meaning of prefix "sarco" | "flesh" in relation to muscles. |
Muscle tissue makes up nearly __ of body masst. | Nearly half |
Sarcolemma | Plasma membrane of muscle fibers. |
Sarcoplasm | Muscle fiber cytoplasm |
these canals cennect the osteocytes in lacunae together and connect them to the central canal | canaliculi |
area between osteons where old ostons have been broken down | interstitial lamellae |
cicular layers that surround the whole bone and is just inside the periosteum | circumferential lamellae |
Where type of bones are made of spongy bone? | short, long, flat and irregular bones |
Where is the spongy bone found in long bones? | epiphyses |
What gives spongy bones its spongy appearance | trabeculae |
What accoundts for a bone's hardness? | crystallized mineral salts |
What accounts for a bone's flexibility? | collagen |
Twenty-three chromosomes per cell in humans is referred to as: | haploid. |
what would be the obligatory sequence of its opposing base pairs? | TAGC |
Diffusion requires: | a concentration gradient. |
Materials can be moved from a low concentration to a high concentration through: | active transport. |
Transcription can be best described as the: | synthesis of mRNA. |
Phagocytosis is an example of: | endocytosis. |
The small water channels in the cell membrane are called: | aquaporins. |
The correct order of the phases of mitosis is | prophase, metaphase, anaphase, telophase. |
which of the following would be true about the nucleic acid? | It contains ribose sugar. |
If a sequence of nitrogen bases in nucleic acid were | A-U-C-G-A, |
Which of the following is not true of RNA? | It contains deoxyribose sugar. |
NaCl would move through the cell membrane in which direction? | Both into and out of the cell |
Which of the following terms is synonymous with tumor? | Neoplasm |
During which stage of mitosis do the centrioles move to the opposite poles of the cell? | Prophase |
Which of the following is not true of diffusion? | Uses cellular energy |
Which of the following statements is true? | The site of transcription is within the nucleus, whereas the site of translation is in the cytoplasm. |
Which of the following terms is synonymous with tumor? | Neoplasm |
All of the following occur as a result of meiosis except: | chromosome number remains at 46. |
Extensive weight training causes the muscle cells to: | hypertrophy. |
Which is not true about the sodium and potassium pump? | Sodium moves into the cell and potassium moves out of the cell. |
Diffusion of particles through a membrane by means of a carrier molecule is called: | facilitated diffusion. |
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. |
Diffusion requires: | a concentration gradient. |