Why do skeletal muscle fibers appear striated when viewed through a light microscope?

Q: Why are sprains and injuries to joint cartilages particularly troublesome?

A: Cartilage performs a variety of functions, including the ability to withstand compressive forces, im...

Q: State the four functions of the heart.

A: The muscular blood-pumping organ of the body's thoracic cavity that received blood from the other bo...

Q: Which of the following is FALSE about filtration at the Bowman's capsule? O The concentration of ion...

A: The urinary system helps to filter out waste metabolites, salts, and water from blood plasma. The ba...

Q: The cells of the embryoblast differentiate into the ______ andthe ______.a. epiblast, hypoblastb. cy...

A: During the process of fertilization, a male haploid gamete (sperm cell) fuses with a female haploid ...

Q: What is a unique feature about the basal ganglia's anatomical organization? Answers: a.  F...

A: Basal ganglia are the nuclei like structures present in brain. These are the subcortical nuclei whic...

Q: What are the valves in the heart, and what is the function of each?

A: The cardiovascular system consists of the heart, the blood vessels and the blood. The heart is a hol...

Q: Using an annotated diagram and a specific example, explain the difference between a excitatory post ...

A: Changes in postsynaptic conductance and the possible changes that follow them modify the likelihood ...

Q: Describe the location, structure, and function of the trachea.

A: The respiratory system is the network of organs and tissues that offer assistance to breathe. It inc...

Q: The limbs of vertebrates are formed froma. the endoderm. b. the mesoderm. c. the ectoderm. d. all of...

A: The human skin consists of primarily three layers such as the ectoderm, the mesoderm, and the endode...

Q: Multiple sclerosis is a demyelinating disease affecting the central nervous system. What type of cel...

A: A demyelinating disease results in the damage of the protective covering around the nerve fibers in ...

Q: What happens to the body temperature during exercise and why?

A: The normal body temperature refers to the typical temperature range found in adult humans at resting...

Q: Why are clavicular injuries common?

A: The Clavicle is the collarbone of the body that is present between the Superiorly to the breast bone...

Q: 1. What are the equipment used in Curls up? 2. What is the procedure of curls up? How to perform it?

A: Muscle is a soft tissue like structure which is primarily responsible for the movement in the body. ...

Q: Define several types of muscle injuries often incurred in sports and recreation?

A: Muscle is one of the four primary tissues which is primarily responsible for the movement in the bod...

Q: Which is true about the oxygen-hemoglobin dissociation curve? OA decrease in pH decreases hemoglobin...

A: All of the above

Q: Describe the vertebral column and define each region.

A: The axial skeleton occupies the longitudinal central axis of the body. It includes skull, vertebral ...

Q: Explain the design and how the two types of pumps used in the cardiopulmonary bypass work.Compare th...

A: The pump device is to replace the function of the heart during a bypass procedure. The two types of ...

Q: 2.Describe the relationship between physical activity and immune function and disease susceptibility...

A: The ability of the organism to recognize and differentiate between the self and non-self particles a...

Q: Akosua Fafali an SHS one student, after a heavy ball of Banku and okra stew was wondering why the fo...

A: DIGESTIVE SYSTEM : food digestion begins in the mouth . The salivary glands in the mouth secrete sal...

Q: Which of the following is the inferior boundary of the nasopharynx? hyoid bone internal nares uvula ...

A: The respiratory system is a biological system responsible for gas exchange in our body. It consists ...

Q: Define myocardium

A: Myocardium can be defined as the heart's muscles and forms the middle layer of the heart wall. It is...

Q: For cardiac muscle action potentials, describe ionmovement during the depolarization, early repolari...

A: The cardiac muscles or cardiac myocytes contract and relax more than 100,000 times a day without sto...

Q: The axons from the nasal retina in the left eye terminate in the:- a. right lateral geniculate nucle...

A: Visual processing occurs both on the outside of the brain as well as inside the brain through the re...

Q: Definition of circulatory shock

A: The circulatory system of the body (cardiovascular system) transports nutrients and oxygen to all of...

Q: For heparin-coated membrane oxygenator, what is the function of heparin in the design?

A: If a patient experiences a heart attack, then undergoing emergency angioplasty or bypass surgery is ...

Q: Which myofilaments have binding sites for calcium? What specific molecule binds calcium?

A: When sarcomeres contract, the thin myofilaments slide between the stationary thick myofilaments and ...

Q: 1.Describe the model used to optimize training. Define the terms undertraining, acute overload, over...

A: 1. Sports training refers to the process by which sports personnel are prepared based on scientific ...

Q: Atrial Naturetic Factor (ANF) is released from the right atria to adjust blood pressure. How does th...

A: Atrial Natriuretic Factor is a 28-amino acid comprising hormone released from the heart. It acts on ...

Q: An obese patient comes to the clinic complaining of swollen feet and ankles, fatigue, shortness of b...

A: Muscles are the soft tissues made up mainly of proteins actin and myosin. The sliding of the muscle ...

Q: How do the blood capillaries supply the lymphatic vessels? Identify each structure in either the cir...

A: Two systems in the body are majorly responsible for carrying out fluid circulation: the circulatory ...

Q: Cells by the apical surface vary in appearance depending on the distension of the organ. When the or...

A: The fundamental unit of life, that is, the cell, is the basic structure found in all living organism...

Q: 1. Discuss the optics of imaging the source onto the retina.   2. Discuss the absorption of light by...

A: The special sense of vision is attributed to the eyes, which is a spherical and paired organ located...

Q: Describe the connective tissue components of skeletalmuscle.

A: Each skeletal muscle is an organ made up of a variety of interconnected tissues. Skeletal muscle fib...

Q: Discuss why physicians might recommend a diet low in Na+ for individuals with high blood pressure.

A: Introduction: The cells, tissues, organs, and organ system are interlinked and live together in a sh...

Q: Match each epithelial tissue in column B with its function listed in column A.Column A              ...

A: Introduction: The collection of cells present in close proximity and are responsible for a particula...

Q: The anatomical position is described as a. body erect, arms at the side, palms forward. b. body flat...

A: Positions, which describe the sites or locations of various structures relative to other locations o...

Q: Where is the pituitary

A: In the human body, several glands are involved in producing different hormones for specified functio...

Q: What are the function of epithelial tissue?

A: A collection or group of cells that consists of only living cells and specialized to carry out a par...

Q: Give a detailed diagram design of cardiopulmonary bypass and how it functions.

A: Introduction: The technique in which the cardiac function is replaced by a machine capable of circul...

Q: How do innate immunity and adaptive immunity work together to defeat a cold virus?

A: The immune system of the body is responsible for fighting the infections in the body and providing t...

Q: Identify layers or tunics of an artery and vein

A: Introduction: Blood vessels are the part of the body's circulatory system that delivers the blood to...

Q: Describe how parathyroid hormone and calcitonininfluence bone health and calcium homeostasis.

A: The endocrine system is made up of a network of endocrine glands and chemical messengers produced by...

Q: What two structures directly receive an electrical impulse from the SA node?

A: Introduction: The sinoatrial node (SA node) is located on the heart's posterior region at the superi...

Q: explain the function of the nervous system (easy and simple, in own words)

A: The nervous system acts through nerve impulses along the axons of the neurons and neurotransmitters ...

Q: Which two body systems are charged with maintaining homeostasis by responding to changes in the envi...

A: An organism's steady physical, chemical and internal state, which is maintained by several processes...

Q: Describe two similarities and two differences between actin filaments and microtubules

A: Introduction: Microtubules are long hollow structures approximately 25nm in diameter; makeup structu...

Q: Which of the following valves are open and which are closed during systole of the ventricle? a) Pulm...

A: The human heart consists of 4 chambers; two upper atria and two lower ventricles. The atria are resp...

Q: Which of the following is the inferior boundary of the nasopharynx? O hyoid bone internal nares uvul...

A: The pharynx is a structure present in the throat of humans. It is situated immediately behind the na...

Q: Which of these types of papillae have no taste buds associated withthem?a. vallate b. filiform c. fo...

A: Introduction: The tongue is an organ that is muscular and is covered with pink and moist tissue refe...

Q: The neurons that carry messages to the brain are calleda. motor.b. associative.c. connective.d. sens...

A: The neuron is the fundamental building block of the brain and central nervous system. Specialized c...