An irregular, whooshing "lub" heart sound may indicate a problem with this: O an overfilling of the pericardial sac with fluid O an atrioventricular valve not closing completely O the sinoatrial node not sending signal O a semilunar valve not closing correctly O the ability of the left ventricle to contract

Q: Explain homeostasis  in the autonomic nervous system.

A: The autonomic nervous system (ANS) is composed of a portion of the periphery, and the central nervou...

Q: Explain function of pituitary  hormone and specific examples.

A: Chemical substances that act like messenger molecules in the body is known as hormones.

Q: Identify the Blood Vessels.

A: Shown here  in the labelled diagram is the cardiovascular system of the neck and head which includes...

Q: T cell education in the thymus. In POSITIVE SELECTION, T cells that recognize MHC survive, T cells t...

A: The recognition procedure relies on the dignity in the antigen-presenting cell of MHC proteins, whic...

Q: Which of the following occurs to break up a clot after a vessel has healed? O tissue plasminogen act...

A: Hemostasis is the natural process by which blood loss stops or ceases after an injury. It includes t...

Q: Ventricular contraction occur during which segment/interval? Question options: 田 P-wave QRS-complex ...

A: One cardiac cycle involves one systole and one diastole. The cardiac cycle starts with arterial syst...

Q: What is phagocytosis? What are the stages of phagocytosis? What occurs at each step of phagocytosis?

A: Phagocytosis ( also known as cell eating) is a process through which dead tissue, bacteria, or other...

Q: 3.

A: Blood typing:It is defined as a test performed to identify the type of blood group an individual bel...

Q: topic: Fecal smear containing ova of Enterobius vermicularis (pinworm).  question: What is the “smoo...

A: Enterobius vermicularis can be found in every human-inhabited biome on the planet. Human intestines ...

Q: Damage to specific regions of the several cortex such as through a straw can result in specific loss...

A: Note: It must be "the Cerebral cortex" and not "the several cortex" and it must be "stroke" and not ...

Q: Normally menstruation occurs when:

A: The estrogen hormone helps in a development of reproductive system and are also a secondary sexual c...

Q: ____________________ are chemicals that produce fever.

A: Immunity is the most talked-about term in this covid pandemic, it defines to be the body's mechanism...

Q: Which is an incorrect statement? Somatostatin inhibits thyroid stimulating hormone. Dopamine inhibit...

A: a) Somatostatin is a hormone secreted from the hypothalamus, which inhibits the secretion of growth ...

Q: The weight of the air around you creates a force called _________________ pressure

A: Introduction: The lungs are spongy, large paired organs present in the thoracic cavity and the princ...

Q: Name three muscles of the pig that together correspond to the trapezius muscle in the human

A: We can say that A muscle is a bundle or band of fibrous tissue present in a human or animal body. It...

Q: Identify the highlighted part of the antibody

A: The antibodies are also called as immunoglobulins and are large Y shaped protein molecules. These an...

Q: Is it true or false ?

A: In cellular respiration, there is break down of glucose into a form which a cell can use as the ener...

Q: 12

A: Introduction: Bone remodeling is the resorption process followed by bone replacement with little alt...

Q: Only a thin film of lubricating serous fluid separtes the parietal pluera from the _____ of a lung

A: The pleural membrane is thin, slippery and composed of two layers. The outer layer is called the par...

Q: Use the following scenario for the next question:  After a normal inspiration, Mary’s normal expirat...

A: Diffusion is the primary mode of gas exchange during respiration. Diffusion is a transport process t...

Q: The wieght of air at sea lvel is sufficient to support a column of mercury within a tube __________ ...

A: Introduction: The terms atmospheric pressure and barometric pressure are used synonymously. It is th...

Q: What runs through the transverse foramen of the vertebrae?

A: The cervical vertebrae only contain the transverse foramina present in each transverse process of th...

Q: What are the cardiovascular risks for middle age and elderly covid-19 survivors?  I

A: COVID-19 is a disease cause by a virus known as coronavirus. Most people suffering will experience m...

Q: 1.  Explain the three components of homeostatic control. Also, compare and contrast negative vs. pos...

A: Homeostasis is the ability of an organism to maintain a stable and constant internal environment in ...

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

A: Introduction: The condition in which the immune system attacks the nerve fiber's myelin sheath is ca...

Q: Which of the following may be the hematocrit level of a person suffering from iron-deficient anemia ...

A: Iron deficient anemia is the most common anemia that affects an individual. The individuals lack red...

Q: List the major events of defecation.

A: The digestive system comprises of Mouth, salivary glands, pharynx, esophagus, stomach, small intesti...

Q: The partially encapsulated lymphatic tissues in the pharynx are called ____________.

A: The commonly called throat is the pharynx. It begins exactly from the base of the skull and ends at ...

Q: Regarding urination, the normal voiding pressure is

A: fgghghjf Fiji

Q: The acid in the stomach activates the enzyme _____ which breaks down proteins.

A: The  pivotal digestive enzymes  amylase, protease, and lipase.are produced by pancreas.

Q: Tissue plasminogen activator (t-PA) is synthesized by many tissues. It functions as an anticoagulant...

A: Blood coagulation is a process that involves the clotting of blood in order to overcome the loss of ...

Q: Identify the highlighted part of the antibody

A: Immunity is the most talked-about term in this covid pandemic, it defines to be the body's mechanism...

Q: Describe the following movements: flexion, extension, abduction, adduction, supination, pronation, d...

A: The regions where  more than 2 bones join are Joints a. Maximum joints are movable, permitting the b...

Q: How does fetal circulation allow blood to bypass the lungs?

A: We can say that when the fetus is in the uterus, it does not have working lungs and a fully develope...

Q: Describe the nonspecific response to infection

A: Introduction: The specific reactivity induced in a host by an antigenic stimulus is referred to as t...

Q: The ribs are raised by the contration of the ____________ muscles which increases the size of the th...

A: During inhalation, there is contraction and downward pulling of the diaphragm. Simultaneously, there...

Q: 34

A: The endocrine system is one of the major systems of the body that is important to sustain life. Horm...

Q: How would you explain to a patient with leukemia, who has a greatly elevated white blood cell count,...

A: The blood is composed of 55% of the blood plasma and 45% of the formed elements. The formed elements...

Q: 9

A: The active thyroid hormone is denoted by T3 whereas the precursor of the thyroid hormone is denoted ...

Q: To block viral reproduction in other cells, the virus-infected cell must secrete production of antiv...

A: Introduction: Immunity is referred to as the host's resistance against any foreign antigen, includin...

Q: 19

A: Nerves or neurons are the structural and functional unit of the nervous system, that mainly function...

Q: The respiratory center is located in the medulla oblongata and the _________ of the brainstem.

A: The minute-to-minute control of breathing ,  is located in the medulla oblongata whichis the respira...

Q: Match the aif volumes with their definitions

A: The air present in the lungs is measured in terms of lung volumes and capacities.  The amount of air...

Q: Explain why lunula has a whitish appearance?

A: We know, Epithelial tissues, usually grow on the outer layer of the organ. Stratified epithelium for...

Q: The process known as __________ allows neutrophils and eosinophils to squeeze between the cells lini...

A: Neutrophils are the type of white blood cells and are an important part of the immune system. The ma...

Q: _________ within the spleen engulf and destroy foreign particles and cellular debris.

A: The spleen is the largest lymphoid organ but a secondary lymphoid organ. Primary lymphoid organs are...

Q: Auto-Regulation of GFR is possible because the glomerular capillaries are located between: 46. A. An...

A: We can say that the blood enters the capillaries of the glomerulus by a single arteriole called an a...

Q: 14. Hydrogen ions (free prc cells and therefore our possess that allow the A. The filtration of prot...

A: The blood becomes acidic due to the presence of hydrogen ions in the blood. The kidneys maintain the...

Q: Match the process or term with the best description.

A: The following options are derived from digestive organs and systems of our body. Digestive system is...

Q: Explain how homeostasis is balanced in the parasympathetic  and  sympathetic nervous system and give...

A: Among the many different organ systems in the body, the cardiovascular or circulatory system is one ...