Anatomy and physiology exam 1

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Anatomy and physiology exam 1

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Malignant melanoma is a specific type of melanoma that arises from these melanocytes. This is the phase in which DNA synthesis occurs, and each strand of the original DNA molecule serves as a template for the synthesis of a new complementary strand.

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Anatomy and Physiology may be presented as two different subjects, but they are so closely linked that they are impossible to separate. In Elementary Biology, you learn that structure, even at the level of molecular biology, is directly tied to function. Anatomy and Physiology classes apply this rule in much greater detail. You gain in-depth knowledge of structures in the Anatomy sections of the course, and you are introduced to the specific implications of these structures in the Physiology section. Instruction in Anatomy often begins by discussing bodily structures including muscles, bones, organs, connective tissues, nerves, and vasculature. You learn the mechanics of these structures, implementing some biophysics material into your understanding of biological structures. It becomes important to understand the mechanical properties of various tissues during the physiological analysis, including force-tension analyses, bone structures, bioelectrical conduction, and other characteristics of muscle, bone, and nerves. In Anatomy, you also need to learn the names and positions of numerous structures, which requires a great deal of memorization. You become familiar with the actions, origins, and insertions of muscles, as well as the various protrusions and contours of the bones.

Anatomy and physiology exam 1

Which of the following specialties might focus on studying all of the structures of the ankle and foot? A scientist wants to study how the body uses foods and fluids during a marathon run. After you eat lunch, nerve cells in your stomach respond to the distension the stimulus resulting from the food. Which of the following is an example of a normal physiologic process that uses a positive feedback loop? For what discovery did he win?

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The cell's cytoskeleton serves multiple functions. Explanation Dense regular connective tissue is found in tendons and is made of densely packed collagen fibers. Physiology means the study of normal huma Explanation A neuron is a component of nervous tissue and has dendrites which receive signals from other cells. The monosaccharide provides the energy, the nitrogenous base determines the specific nucleotide, and the phosphate group helps in transferring energy. The nucleus is surrounded by a single membrane called the nuclear envelope, which helps to protect and regulate the movement of molecules in and out of the nucleus. By lowering the activation energy, enzymes make it easier for the reaction to proceed, effectively decreasing the amount of energy needed for the reaction to happen. Name the Major and Minor cavities. Sign in Don't have an account? Angie and Kayla. Sebum acts as a natural moisturizer, lubricating the skin and hair, and also has antimicrobial properties. This process involves the breakdown of glucose and other molecules to release energy, which is then used to produce ATP. Correct Answer C. Therefore, mitochondria are the cellular component that is not involved in these processes. Explanation The stratum corneum is the outermost layer of the epidermis, consisting of dead skin cells that have undergone keratinization.

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Explanation The correct answer is "all of the above. Explanation Keratinized stratified squamous epithelium would be found in areas of the body that experience significant "wear and tear" because it provides protection against abrasions and penetration of pathogenic organisms. Posterior aspect is subdivided into two enclosed cavities that are completely encased in bone:. Intercalated discs are specialized cell-to-cell junctions that allow for electrical and mechanical coupling between cardiac muscle cells, while striations are the alternating light and dark bands seen under a microscope, indicating the presence of organized contractile proteins. What is special about ventral cavities? Collagen is the main protein found in tendons, responsible for their strength and flexibility. This allows the external ear to have its characteristic curved and folded shape, which helps in capturing and funneling sound waves into the ear canal. Vertical plane that divides the body or organ into left and right halves. Correct Answer A. Serous fluid. Name four planes of the body. Transverse plane, creates superior and inferior sections. Explanation The passage of solutes across the plasma membrane from a region of high concentration to one of lower concentration is called diffusion. Explanation An active transporter is not part of a common feedback loop because it is responsible for moving molecules across a membrane against their concentration gradient, using energy from ATP. Find out how you can intelligently organize your Flashcards.