How is swallowed food prevented from entering thenasopharynx?

Q: Region free of RBCS may occur in arteries:

A: RBCs or red blood cells are the blood cells that deliver oxygen to the different body tissues and ce...

Q: In general, explain how epigenetic modifications are an important mechanism for developmental change...

A: Phenotypic changes  that are influenced by environmental factors instead of genetic changes are know...

Q: Oliver has been suffering from persistent hypertension, severe headaches, and palpitations for a cou...

A: The adrenal glands are endocrine glands that generate various hormones comprising adrenaline and the...

Q: Distinguish between, and compare, cardiac muscle and skeletalmuscle

A: Muscle cells allow movement by responding to stimuli. The muscles are contractile; they can adjust t...

Q: Distinguish between saturated and unsaturated fats. Whatare trans fats?

A: Lipids or fats are one of the macronutrients required by the body. Its function is to act as the res...

Q: what statements are false about the Accessory Structures of the Eye? 1. The eyebrows prevent perspir...

A: The sensory organ that lies in the facial region and provides the organism with a sense of vision is...

Q: A sample of 2.05 g of polystyrene of uniform polymer chain length was dissolved in enough toluene to...

A: Osmosis is a rate controlled mechanism which can actually be stopped with a help of pressure called ...

Q: what statement/s  is false about Neuronal Pathways for Olfaction a. Axons from the olfactory neurons...

A: The sensation of smell gets in our olfactory system when certain chemical substances gets dissolved ...

Q: New diet guru claims hypersecretion of cortisol is the reason why so many people are obese. He is ma...

A: Cortisol has been termed the "stress hormone" because excess cortisol is secreted during times of ph...

Q: ________ pressure must be greater on the capillary side of the filtration membrane to achieve filtra...

A: Kidneys are principally responsible for filtering the blood 300 times in one day and out of which 99...

Q: Unencapsulated, terminal branches of dendrites are calleda. lamellated corpuscles.b. free nerve endi...

A: The dendrites are the specific projections of the neuron that receives information from other neuron...

Q: Classify ther following enzyme ? 5-alpha reductase

A: An enzyme is known as a biological catalyst that enhances the rate of a chemical reaction without it...

Q: What three main branches arise from the celiac trunk?

A: The celiac trunk is referred to as the significant artery responsible for supplying the blood to the...

Q: Summarize the major characteristics of skeletal,smooth, and cardiac muscle.

A: Muscle is a soft tissue in the body that gives the ability to contract and solely responsible for ch...

Q: What is the pituitary gland? What is its important role?

A: The pituitary gland can be defined as the small, oval-shaped gland present attached to the hypothala...

Q: Explain how the peritubular capillaries are adapted for receiving reabsorbed substances.

A: The peritubular capillaries are the small, porous, blood vessels of the renal system that are locate...

Q: What are the roles of the dura mater, arachnoid mater, and pia mater relative to their basic structu...

A: Three layers of membrane envelop the spinal cord and the brain. Collectively, these are known as the...

Q: Explain the Athletics and Muscle Contraction ?

A: Athletics is a series of complex sports involving movements like running, throwing, walking, sprinti...

Q: Describe how monosynaptic and polysynaptic reflex arcs differ

A: The reflex arc can be defined as the pathway taken by the neuron in the reflex action.  Monosynap...

Q: what statements are false about Balance a. Static balance evaluates the position of the head relativ...

A: Balance consists of two types of equilibrium that is static equilibrium and dynamic equilibrium.  St...

Q: Cartilage grows by interstitial growth. What does this mean?

A: Cartilage is a resilient and smooth elastic tissue, rubber-like padding that covers and protects the...

Q: Describe the specific effect of aldosterone on the kidney.

A: Aldosterone, a hormone released by the adrenal cortex. It is the main hormone of the RAAS (renin-ang...

Q: Describe the overall pathway from the decision to move to the execution and monitoring of a motor pr...

A: Motor program of the body is involved in the movements. It is regulated by the part of the CNS (cent...

Q: What are the two major fluid compartments of the body?

A: The human body comprises two different types of fluids; intracellular fluid (ICF), which is present ...

Q: The cardiovascular system interactswith which other body systems?

A: The cardiovascular system is commonly known as the 'Circulatory System.' This system is comprised of...

Q: Sulfur dioxide has one more resonance form than ozone. Explain why this structure is not possible fo...

A: In the structural analysis, resonance is considered the way of describing the bonding and the deloca...

Q: Heparin is an anticoagulant that activates an enzyme called antithrombin. Based on its name, how wou...

A: Blood coagulation or clotting is the conversion of blood’s liquid form into a solid gel. The solid g...

Q: Why is a synchondrosis a synarthrosis? Why would you want asynchondrosis to be immobile?

A: Joints are the point of contact between the two or more bones and also between bones and cartilages....

Q: explain the functions of the lipid, protein, andcarbohydrate components of the plasma membrane;

A: Plasma membrane referred to as the biological membrane that functions in separating the cell from th...

Q: Which of these conditions does not occur during the inflammatoryresponse?a. release of histamine and...

A:  There are many ways by which one can avoid an inflammatory reaction. They are: By consuming anti in...

Q: #7

A: Human blood can be grouped into several categories depending on the presence or absence of specific ...

Q: question 9

A: There are two renal veins, left and a right which branch off from the inferior vena cava and drain d...

Q: Distinguish between the rods and cones of the retina.

A: Eyes are the paired, ball-shaped organs concerned with the unique sense of vision. Rods and cones ar...

Q: The radius bone ________.a. is found on the medial side of the forearmb. has a head that articulates...

A: Out of 206 bones in the body, 64 bones are present in upper limbs. Each side of the upper limb conta...

Q: Define Calvin cycle

A: Calvin cycle can be defined as the process which occurs in green plants and algae in which carbon di...

Q: Rickets results in improper bone development in children that arises from the malabsorption of calci...

A: Rickets is prevalent in children who are between 6 and 35 months old. Children usually experience ra...

Q: Distinguish between the somatic and autonomic divisionsof the peripheral nervous system.

A: The nervous system of vertebrate organisms is broadly divided into two parts; the central nervous sy...

Q: Define Arthropoda

A: Arthropoda is the largest Phylum of invertebrates. All the organisms belonging to Phylum Arthropoda ...

Q: Watch this video (http://openstaxcollege.org/l/shoulderjoint2) to learn about the anatomy of the sho...

A: The glenoid labrum (glenoid ligament) is a fibrocartilaginous rim attached around the margin of the ...

Q: 1) What factor(s) most likely account for the increase in the diagnosis of autism spectrum disorders...

A: Autism spectrum disorder (ASD) is a neurodevelopmental disorder that begins early in childhood and c...

Q: Which of the following statements is NOT true about human growth hormone (hGH)? Select one: a. Exc...

A: The hormones are protein based chemical messengers which forms a part of the signaling molecules in ...

Q: What happens if only the dorsal white matter is damaged on only one side of the spinal cord, includi...

A: The spinal cord is an essential part of the central nervous system housed in the vertebral segment o...

Q: Martin and Kim were thrilled with the arrival of their first-born child, Michael but became concerne...

A: Biliverdin is a green pigment that is converted to yellow colour bilirubin by an enzyme biliverdin r...

Q: which statements are true about the Auditory Structures and Functions a. The external ear consists o...

A: The auditory structure in the body is ears. They are divided into three parts: the outer ear, middle...

Q: Genetic Crosses that Involve 2 Traits In rabbits, black hair is dominant to brown hair. Also in rabb...

A: Given: B =  dominant allele = black hair b = recessive allele = brown hair E = dominant allele = lon...

Q: How is the anatomy of capillaries and capillary beds well suited to their function?

A: Capillaries constitute the smallest blood vessels in the body having diameter of 5-10 micrometers, t...

Q: What hormone primarily regulates the absorptive state,and what are the major effects of this hormone...

A: The absorptive state is referred to as the period at which the gastrointestinal tract is full, and t...

Q: Caitlyn had unprotected sex with her fiancé about 2 weeksafter her last period, and is worried that ...

A: A menstrual cycle occurs every 28 days. However regular cycles that occur between 21 to 40 days are ...

Q: Scenario: One human, who is much heavier than the others, seems to be showing signs of what Vegan’s ...

A: Heart block is the blockage of impulses generated by SA node in the conductive system. Because of th...

Q: Compare and contrast the storage reflex and the micturition reflex.

A: Reflex referred to as the specific action performed unconsciously or involuntarily by the body in re...