Deficiencies in complement components C1–C4 are associated with _____. a. neutropenia b. chronic granulomatous disease c. immune-complex disease d. opportunistic infections e. leukocytosis.

Q: Choose the signal transduction mechanism used by acetylcholine to initiate skeletal muscle contracti...

A: Signal transduction is additionally known as cell signalling which is the transmission of atomic sig...

Q: Identify the structures of the upper respiratory system and provide theirfunction.

A: The respiratory system is the organ system of the body that is principally responsible for carrying ...

Q: Explain the structure and function of skeletal, cardiac, andsmooth muscle.

A: Muscle tissue is characterized by properties that allow movement. Muscle cells are excitable; they r...

Q: (a) Describe the steps of erythrocyte formation in the bone marrow.(b) What name is given to the imm...

A: a)Erythropoiesis is defined as the process of origin, development and maturation of the erythrocytes...

Q: The triangle of auscultation is formed by all of the followingmuscles except thea. trapezius.b. rhom...

A: The muscles are a part of the musculoskeletal system of the body. They are primarily responsible for...

Q: How would muscle contractions be affected if ATP was completely depleted in a muscle fiber?

A: There are four major tissue types in the body, including connective, muscular, epithelial, and nervo...

Q: How do T cells and B cells originate?

A: The T-cell and B-cells are immune cells of the body are responsible for fighting against any pathoge...

Q: Summarize the characteristics of the disorders that affectthe upper and lower respiratory tracts

A: Respiratory tract is composed of the organs that participate in the process of breathing. The upper ...

Q: . Which of these muscles causes plantar flexion of the foot?a. tibialis anterior d. soleusb. extenso...

A: The skeletal muscles are multinucleated, striated, and cylindrical; these are made up of myofibrils ...

Q: What are the names of the tarsal bones? Which tarsal bonearticulates with the leg, and which tarsal ...

A: Bones are the structural and functional units of the skeletal system of the body. Bones give a disti...

Q: Most tissues regulated by the autonomic nervous system receive both sympathetic and parasympathetic ...

A: The autonomic nervous system is a control system that acts to unconsciously control and regulates bo...

Q: What are the key hormones responsible for maintaining caloric homeostasis?

A: Caloric homeostasis is a biological process that performs coordinated homeostatic regulation of the ...

Q: List the three variables that determine the percentage of total water in the body.

A: The amount of water present in the body of animals is called body water. Water can be present in the...

Q: What factors make pregnant women more likely to get urinary tract infections?

A: Urinary tract infection or UTIs is an infection affecting the urinary system and other related organ...

Q: Explain the characteristics and functions of connective tissue

A: Tissues are specialized group of cells having common structure and work to perform a specific functi...

Q: Why are phosphate buffers more effective in the cytoplasm than in the blood plasma?

A: Phosphate buffer helps in maintaining the intracellular pH. This buffer system regulates the pH of t...

Q: On what basis is the vagus (X) nerve named?

A: Cranial nerves are one of the part of the peripheral nervous system (PNS). They help to establish co...

Q: Select the best answer or answers from the choices given: Most oxygen carried in the blood is (a) in...

A: An extracellular body fluid that flows in the tube-shaped hollow organs called the blood vessels to ...

Q: What are the different ways in which carbon dioxide is transported in the blood?

A: Blood is a constantly circulating liquid providing the body with nutrition, oxygen and waste expulsi...

Q: Which of the following is not a function of blood?a. prevention of fluid lossb. nutrient and waste t...

A: In our body, there are many organ systems that have specific functions. Digestive systems help indig...

Q: What are interferons? How do they work?

A: Cytokines are types of small proteins that play a vital role in cell signaling. These peptides do no...

Q: What do the ventricles contain, and why?

A: The ventricular system is crucial for the natural functioning of the central nervous system. It insu...

Q: Explain what might happen if a genetic mutation caused a person’s digestive tract to have stratified...

A: Epithelial tissues consists of various types of cells such as : Simple squamous epithelial cells  C...

Q: What are the forces that help to move the lymph along ?

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

Q: Briefly describe “going for the burn” in a workout in terms of the material in this chapter.

A: One of the most common forms of pain or discomfort we feel during strenuous exercise is a burning se...

Q: Respiratory alkalosis is caused by and can be compensatedfor by the production of a more urine.a. hy...

A: Respiratory alkalosis is a disturbance in acid and base adjust due to alveolar hyperventilation. Alv...

Q: During which phase of mitosis do the sister chromatidsbegin to move apart from each other at the mid...

A: The cells multiply through a process of cell division; there are typically two mechanisms for cell d...

Q: An atrial septal defect is a birth defect in which there is an opening in the septum between the lef...

A: An atrial septal defect is an opening within the atrial septum or partitioning wall between the two ...

Q: The epineurium isa. a thick, dense irregular connective tissue layerenclosing the nerve.b. a group o...

A:   Step 1 Connective tissues are particular tissues that are found in the body. They hold the body's ...

Q: Describe the age-related changes in tissues withabundant collagen and elastic fibers.

A: Tissues are groups of cells that have a comparable structure and act together to perform a particula...

Q: Define humoral immunity.

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

Q: How can hemoglobin carry oxygen and carbon dioxide at thesame time?

A: A protein found in the erythrocyte's cytoplasm that comprises of the heme pigment and globin protein...

Q: What is an epitope? What is a hapten?

A: Immunogens are substances that can produce an immune response. Antibodies are Y-shaped immunoglobuli...

Q: A movement of a limb toward the body in the coronal plane اختبار سري O Abduction O Adduction O Flexi...

A: There are three basic planes used in anatomy, that is a sagittal plane, coronal plane and a transver...

Q: Identify and describe the events in the cardiac cycle

A: The cycle of events which occurs in a single heartbeat is called cardiac cycle. It refers to the rep...

Q: Summarize brain structures involved in emotional recognition & expression

A: The Brain is one of the biggest and most complex organs within the human body. It is made up of more...

Q: What name is given to a thick tract linking the brainstem andcerebellum?

A: The posterior stalk-like portion of the brain that connects the cerebrum to the spinal cord is known...

Q: How are the gray matter and white matter arranged in thecerebellum? What is the arbor vitae?

A: The cerebellum is one of the major parts of the brain that is located in the hindbrain. It is respon...

Q: What is the function of the interstitial cells, and where arethey located within the testis?

A: INTERSTITIAL CELLS : interstitial cells also known as leydig cells  Interstitial cells paly a wide r...

Q: Teri is a 14-year-old with a bad case of acne. Explain theprobable cause of Teri’s skin condition.

A: Acne is referred to as the clinical condition related to skin. It generally occurs when the hair fol...

Q: Name the structures found in the renal hilum.

A: The process by which metabolic waste products are eliminated from the body of animals is called excr...

Q: Define autophagy and indicate its major cellular function.

A: Cell is a basic structural and functional unit of cellular organisms. It is an aqueous compartment b...

Q: What are allergic reactions and autoimmune diseases?

A: “In autoimmunity, there is a different type of T-cell involved than in allergies. In an autoimmune r...

Q: Which part of the clavicle articulates with the manubrium? a. shaft b. sternal end c. acromial end d...

A: Bones, tendons, cartilage, ligaments, and joints (the major skeletal elements) collectively form the...

Q: List the two layers of skin and briefly describe subcutaneous tissue.

A: The skin is the body's biggest organ. It covers the complete body. It serves as a defensive shield a...

Q: Choose the signal transduction mechanism used by acetylcholine to initiate skeletal muscle contracti...

A: The neurons are specialized cells of the human nervous system which comprises four main parts: the c...

Q: Match each item in column A with the most closely related item in column B. Place letters for answer...

A: Match of the following : The processes which protect body functions and are essential for survival a...

Q: Background: You are working with a patient who has trouble getting rid of Potassium (K). Normally, t...

A: The resting membrane potential is the result of the development of a few diverse ion species through...

Q: Describe the roles water and oxygen play in the human body.

A: The human body is comprised of cells and tissues that formed different body structures. The body sys...

Q: What are the three eye tunics; what is the primary function ofeach tunic?

A: The eyes are the ball-shaped, paired organs that are concerned with the sense of vision. Structurall...