Briefly explain about the cardiac cycle b) Differentiate between 1st and 2nd heart sound (based on image) c) Explain the Frank-starlings's law of heart that is related with venous return

Q: In this image of a blood vessel, which layer(s) are an elastic lamina? A В E O A only O E only O D o...

A: We can say that The cardiovascular system includes both the heart and its blood vessels. The main ro...

Q: A. Contact Transmission      C. Common Vehicle Transmission B. Airborne Transmission      D. Vector-...

A: Human body has been prone to number of diseases or malfunctions of organs, tissues or cells, for ove...

Q: Describe the process of implantation and placenta formation

A: Fertilization is the mechanism of fusion of sperm and an egg. This represents the first stage of sex...

Q: Define intraperitoneal

A: The peritoneum can be defined as a membrane that encircles the abdominal cavity and lines the organs...

Q: 78. How would you classify an articulation between two flat bones joined by short, collagenous fibe...

A: Synchondrosis joint would be between the costal cartilage and sternum. There are no ligaments or ten...

Q: Define tubercle

A: Introduction: Anatomy is that branch of medical science that describes the location and structure of...

Q: Name and describe three mechanisms of RNA processingin eukaryotes, and explain their importance to t...

A: As given in the central dogma of life, the genetic information is passed on from DNA to RNA and then...

Q: You and a friend were wrestling for control of a football when you heard a snap. Your friend is now ...

A: Bone is one-third connective tissue. It is impregnated with calcium salts which constitute the remai...

Q: Define spermatid

A: Introduction: Gametogenesis (gamete production) is the process of bipotential primordial germ cells ...

Q: Which of the following molecules would you add to skin cells to reduce the chance of skin cancer? Se...

A: As we know The skin consists of the upper layer epidermis, middle layer dermis, and lower layer hypo...

Q: One of the following statements concerning autonomic nervous system is TRUE:

A: The preganglionic fibres of both sympathetic and parasympathetic fibres secrete acetylcholine into t...

Q: Connective Tissue Loose Hyaline Elastic Fibrocartilage

A: Along with epithelial tissue, muscular tissue, and nerve tissue, connective tissue is one of the man...

Q: How stress can interfere with the activity of lymphocytes and other parts of the immune system ?

A: Introduction:- The immune system is a group of billions of cells that travel through the bloodstream...

Q: An increase in all the following can increase arterial blood pressure EXCEPT: O a. Arteriolar diamet...

A: Arterial blood pressure is the pressure in the arteries. Blood is pumped from the heart through arte...

Q: At what average age does flexibility start to diminish for most people?

A: The loss of flexibility in most people occurs with age. No individual is as flexible as they are dur...

Q: A moderate increase in the mean arterial pressure would increase the level of: a. Anti-diuretic horm...

A:   Hi! Thanks for your question. As you have posted multiple questions and have not mentioned which o...

Q: Describe one benefit and one disadvantage of herbicide andpesticide use in agriculture.

A: Agriculture can be outlined as the art and science of cultivation of the soil growing the crops and ...

Q: During one cardiac cycle, the longest period of time is: a. Between opening and closing of atriovent...

A: The cardiac cycle, also known as the cardiac rhythm, is a series of events that take place with each...

Q: Grey eyes (b) are recessive to brown eyes (B) in rabbits. In an ideal rabbit population exhibiting H...

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous chrom...

Q: What is muscle contraction headache?

A: Sometimes the sudden, involuntary cramps or contractions in muscle fibers can cause pain. The muscle...

Q: Need Help

A: We can say that Homeostasis regulation helps in maintaining stability, balance, and equilibrium of t...

Q: Frank-Starling's law of the heart correlates two variables: O a. Sarcomere length and ford of contra...

A: The circulatory system is one of the most essential systems in the human body to maintain normal fun...

Q: Taxonomic Account Phylum A Class Order Family Genus Species Scientific Name: Common Name: Brittle st...

A: This group animals are bilateral and deuterostomial eucoelomate eumetazoan. These are rough, tough a...

Q: Nhen a lymphocyte is responsive to an antigen O it will undergo clonal expansion O it will undergo a...

A: The cells found in living organisms developed from bone marrow in order to protect the organism’s bo...

Q: Match each of the term

A: Introduction:- The ear is an organ that enables hearing and, in mammals, to balance. In mammals, the...

Q: Identify the epithelial tissue based upon the description: A single layer of tall, oblong cells lini...

A: The digestive tract comprises four types of muscle layers these are mucosa, submucosa, muscularis, a...

Q: What properties of air make it possible forhumans and other mammals to breathe by tidal ventilation?

A: Introduction: The air is a gaseous mixture comprising various gases like nitrogen, oxygen, and carbo...

Q: If mutations occur at random with respect to anorganism’s needs, how does a species become more adap...

A: Mutations are alterations in the DNA sequence that are a major source of variation across species. T...

Q: Draw a diagram to illustrate how a concentrationgradient of a transcription factor along the anterio...

A: Introduction:- Drosophila embryogenesis, the process by which the embryo Drosophila (fruit fly), is ...

Q: If a red blood cell was placed in a 50mOSM solution, the cell would:

A: Red blood cells or RBC is responsible for gaseous transport throughout the body. It contain hemoglob...

Q: Compare the movement of pollen from an animalpollinated angiosperm and a wind-pollinated conifer, no...

A: A flower can be bisexual (having both male and female portions on the same flower) and unisexual (ha...

Q: Angiotensin converting enzyme inhibitors work as antihypertensive drugs by: a. Decreasing angiotensi...

A: According to our guideline we can answer only the first question. The second question is completely ...

Q: What properties are common to all living things?

A: It is very difficult to define life. Life may be regarded as a property of living things which disti...

Q: Curare is a paralyzing compound that blocks theaction of the neurotransmitter acetylcholine at the m...

A: The neuromuscular junction is the junction where the communication between the nerve cells and muscl...

Q: Which biomolecule/s can you observe in large amounts in a mammalian sperm? Select the correct respon...

A: Sperm is the haploid gamete that is produced by the primary sex organ (testis) of males. The develop...

Q: Find the purpose of each of the neurotransmitters listed below. Also, describe what might happen to ...

A: The nerve impulse is traveled from one neuron to another through the synapse(the small gap between t...

Q: You would like to amplify the gene shown below using PCR with two primers: the primers are shown on ...

A: PCR technique can be utilized to amplify the sequence of human genome. In PCR, two primers can be ut...

Q: Describe the process of DNA replication. What are the functions of DNA polymerase and DNA ligase?

A: The chromatin allows the replication machinery easy access to the strands of the DNA molecule.  Enzy...

Q: Define chromatid

A: Thread like coiled, elongated structure, present in nucleoplasm and stained with basic stain and whi...

Q: Define neuromuscular

A: Muscle contraction can be defined as a phenomenon in which there occurs contraction and relaxation o...

Q: The highest RATE of flow from atria toward ventricles is during: O a. Mid ventricular diastole. o b....

A: The heart pumps oxygenated blood into circulation. The heart has four chambers- Right atrium, left a...

Q: he diagram depicts one of the two strands of DNA, at the end of a chromosome. Replication of this st...

A: Both the DNA strands are antiparallel meaning they run with opposite directionality that is one stra...

Q: What are the components and functions of the olfactory organs?

A: We can say that Olfaction is defined as the sense of smell. The volatile molecules present in the ai...

Q: Define conus medullaris

A: Introduction: The spinal cord is a long, narrow, and cylindrical structure located external to the s...

Q: Describe what is meant by lysis and lysogeny, and explainhow gene regulation controls these two path...

A: Gene regulation plays a crucial role in normal development. Throughout development, genes are turned...

Q: Correctly label the flexors of the wrist and hand.

A: Muscle fibers are a type of cell found throughout the body. This fiber's primary role is to enhance ...

Q: Define inversion

A: Joint referred to as the point where two bones meet each other and these joints are very much essent...

Q: Particulate contamination of the alveoli can result in serious respiratory disease. What three struc...

A: The respiratory tract can be defined as the organ system of the body that is accountable for carryin...

Q: Describe the pelvic girdle of chicken. Differentiate it from the pelvic girdle of the horse

A: The main exterior components of a chicken include the comb, beak, wattles, ears, earlobes, eyes, eye...

Q: Differentiate the femur of the chicken from any other mammal.

A: The skeletal system is the organ system of the body that forms the framework of the body and it is m...