24. Which of the following is true concerning the role of Calcium in the contraction of muscle- cells? A. Smooth muscle cells contract in response to an extracellular inward-Calcium-current. B. Skeletal muscle cells contract in response to an extracellular inward-Calcium-current. C. Striated muscle cells contract in response to an extracellular inward-Calcium-current. D. No type of muscle cell requires an extracellular inward-Calcium current for normal contractile-function.

Q: 9. Match each of the following statements related to membrane transport processes to the appropriate...

A: Membrane transport involves the transport of molecules through a cell membrane. It may be a plasma m...

Q: 6. Which of the following bones possesses the foramen magnum? cstal crtage a. frontal b. occipital C...

A: A bone consists of bone tissue, cartilage, dense connective tissue, epithelium, adipose tissue, and ...

Q: How do the functions of basophils differ from those oflymphocytes?

A: The white blood cells (WBC) are large nucleated cells which do not possess hemoglobin. Unlike the re...

Q: Match each numbered item with the most closely related lettereditem.1. perimysium2. sarcolemma3. I b...

A: The muscular system in our body plays an important role in producing movements The mobility of the b...

Q: vDescribe the erector spinae, and briefly discuss their function.

A: The muscular system comprises different muscles, veins and blood vessels. These muscles are responsi...

Q: Select the letter of the choice that best completes the statement. The kidneys are located in which ...

A: The excretory system involves the elimination of the nitrogenous wastes by the kidneys. It consists ...

Q: During the absorptive state, glucose levels are ________, insulin levels are ________, and glucagon ...

A: During the process of digestion, the carbohydrate consumed in the diet is broken into simple sugars ...

Q: Describe how helper T cells stimulate an increase in thenumber of B cells or T cells. Why is this im...

A: Helper T cells are very important for the adaptive immunity. They are required for the activation of...

Q: Drugs are used to relax muscles during surgery.  Which of the two chemicals described next would mak...

A: A muscle relaxant is a drug which affects the skeletal muscles and decreases the tone of muscles. Th...

Q: List the functions of the lymphatic vessels.

A: Lymph is the white clear fluid that flows through the lymphatic system. Lymph consists of white bloo...

Q: Where does tubular secretion take place? What is thedirection of movement?

A: A pair of kidneys are located below the ribs towards the middle of the back. The kidneys have tiny f...

Q: Q NO 5 (a) Write a detail note on cardiovascular system along with its diagram?

A: The cardiovascular system is a vital division of the body's circulatory system that concerns the tra...

Q: reproducive system anatomy and histology: the cells represnted at the arrow is ___________ located i...

A: Testes are known as the primary sex organs in males. Sperms are formed in the testis. Seminiferous t...

Q: Which of the following choices is NOT a risk factor for developing CHF?   Sleep apnea  ...

A: A problem with the heart's ability to carry oxygen across the body. It could take a long time to evo...

Q: Which types of neural circuits would give a prolonged output after a single input?

A: The neural systems involve the connections and the support to the nervous system which functions on ...

Q: b) Write down the physiology of tongue?

A: The tongue is a voluntary muscular structure which along its associated structures form the floor of...

Q: Q NO 2 Define the reflex arc? Also write down its steps?

A: Reflex action or reflex- In response to a stimulus, there is a spontaneous, voluntary and automatic ...

Q: Which of these should always be included in a personal health plan fc fitness? Select the two correc...

A: There are various advantages based on physical fitness, that involves regular exercise and physical ...

Q: List the 6 possible genotypes of the four blood types. Identify the parentalgenotypes that could pro...

A: Gregor Mendel discovered the fundamental laws of inheritance. He deduced that genes come in pairs an...

Q: Choose between sister chromatids and homologous chromosomes for each

A: Chromosomes are thread like structures that are composed of the protein and the genetic material, pr...

Q: Define hemostasis, and explain the mechanisms that help achieve it.

A: The blood is the circulating fluid made of formed elements, namely the Erythrocytes o the red blood ...

Q: Define cochlear duct

A: The ear is a complex organ of the sensory system. It is placed on the human skull bilaterally on the...

Q: Describe two factors that lead to greater filtration in the glomerular capillaries compared to the s...

A: Urinary System is an excretory system to remove nitrogenous waste from the body. The human urinary s...

Q: Define carboxyl end

A: Amino acids can also be called as building blocks of proteins, are very essential component or macro...

Q: List the age-related factors that contribute to cartilagewear in synovial joints.

A: Joints are referred to as the articulation of the two bones in the skeletal system of the body. Join...

Q: Compare laminar and turbulent blood flow

A: Blood is the specialised fluid of the body. It comprises 4 components, plasma, red blood cells, whit...

Q: how does the structure of the intermediate filament relate to its structural properties?

A: Intermediate filaments  are a diverse, integral, and ubiquitous component of the nuclear and cytopla...

Q: This cell process illustrates Select one: a. meiosis b. interphase c. mitosis d. cytokinesis

A: Cell is the basic structural and functional unit of life. It divides to produce daughter cells.

Q: How is sensory transduction in the semicircular ductssimilar to that in the saccule and utricle?

A: The vestibular system is the sensory apparatus of the inner ear that helps the body maintain its pos...

Q: Explain the origin of the word glycolysis and why this is anappropriate name for the function of tha...

A: The glycolysis is defined as the breaking down of glucose molecule into pyruvate to generate the ATP...

Q: How does a sensory receptor function as a transducer?

A: The sensory cells are involved with the detection of light, smell, sound, taste, and also temperatur...

Q: Compare the secretions of the seminal vesicles, the prostategland, and the bulbourethral glands.

A: The reproductive systems include both the male and female reproductive organs meant for the process ...

Q: Define active transport

A:  A plasma membrane is a bilayered phospholipid structure that separates the cell from external surro...

Q: Explain how the hypothalamus of the brain and the autonomic nervous system allow us to fight or flee...

A: When someone experiences a stressful event , the amygdala , an area of the brain that contributes to...

Q: The kidneys play an important role in maintaining MAP by influencing which variable? Explain how ren...

A: Urinary system consists of kidneys, ureters, urinary bladder and urethra. The urinary system produce...

Q: How does olfaction (smell) contribute to flavor?

A: Sense organs are defined as the organs that respond by providing impulse to the sensory nervous syst...

Q: What area of long bone is covered with cartilage?

A: The Bone is a connective tissue in our body that constitutes the endoskeleton and are classified by ...

Q: Explain how the structure of each neuroglial cell supports its function?

A: Neurons are the structural and functional unit of the nervous system and are also known as nerve cel...

Q: Mechanoreceptors that detect pressure changes in the walls of blood vessels and in portions of the d...

A: The neural integration involves various electrochemical signals and receptors which are responsible ...

Q: Which statement is true about intercostal nerves?a. They are formed from the posterior rami of spina...

A: The central nervous system consists of the brain and the spinal cord. The central organ of the human...

Q: Table 8.2. Measurement of the Metabolic Rate of a Frog at Different Environmental Temperatures. Meta...

A: Homeostasis is maintenance of stable physical and chemical conditions in the body. Based on how anim...

Q: What factors probably stimulated an early interest in the human body?

A: Stimulation  furnished internally from thinking or externally from the atmosphere . Mental workout o...

Q: How is vitamin D synthesized, and what effect does it haveon blood calcium concentration?

A: The cells are basic structural and functional units of life. The human body contains many types of c...

Q: Bone remodeling involves two hormones; one of these hormones activates the cells which cause Bone Re...

A: Bone remodeling is simply a synthesis and destruction that is required to mature the bones structura...

Q: 10. The first seven vertebra are referred to as the vertebra.. s fond an the a. cervical b. thoracic...

A: Vertebra can be defined as the cascade of small bones that are responsible for forming the vertebral...

Q: A) Would you conclude that the other primates are tasters or non-tasters? Why is this important? Wha...

A: Primates are terrestrial mammals that are evolved live in tropical forest trees. Some of the charact...

Q: Describe the homeostatic mechanism by which an excess or deficitof potassium controls aldosterone pr...

A: Homeostasis can be defined as the ability of a cell, tissue or organ system to regulate its constant...

Q: state and explain 10 ways the human body prevents infections

A: Infection is caused by pathogenic organisms, including bacteria, viruses, fungi, and parasites. The ...

Q: 14. The clavicles articulate with the sternum and. A. manubrium B. xyphoid process C. acromian proce...

A: The bones that are attached with each upper limb to the axial skeleton form the pectoral girdle, als...

Q: Define bursa

A: Introduction: The skin is the main organ of the human body. This organ is made up of three layers: e...