Several snake venoms contain toxins which blocks acetylcholine receptors at the neuromuscular junction. The presence of these toxins would directly interfere with the ability to:  a   initiate skeletal muscle contraction    b   relax cardiac muscle after contraction  c   control smooth muscle contraction  d   release acetylcholine from motor neurons  e   generate action potentials in motor neurons

Q: The transmission of sensory information requires the input of free energy. For each sensory system (...

A: A part of the nervous system that is responsible for processing sensory information is the sensory n...

Q: name and locate the muscles that produce facialexpressions;

A: Muscle is a group of contractile tissue which contain filamentous proteins (actin and myosin) that s...

Q: Don't copy from Google

A: The cervical region of the body is the neck region which consists of seven bones of the vertebral co...

Q: 1) Explain the differences between different types of graded potentials? Don't copy from Google

A: Introduction: The electronic or graded potential is referred to as the non propagated, local potenti...

Q: Activation of the myosin head is required for contraction and uses one ATP per cross-bridge cycle. O...

A: Contractile proteins are structural proteins. These helps in muscle contraction and relaxation. Ther...

Q: What the parts of the stomach?

A: Introduction: The digestive system comprises the digestive tract that is also referred to as the ali...

Q: Eccrine sweat glands ________.a. are present on hairb. are present in the skin throughout the body a...

A: Eccrine sweat glands - are present in the skin throughout the body and produce watery sweat .       ...

Q: Define osseous

A: Introduction: Bones comprise two different types of tissues, namely, spongy bone tissue and compact ...

Q: Explain in your own words why the oxygen cascade is presentedas a cascade of partial pressures.

A: The gradient of oxygen's partial pressure between the air in the environment and mitochondria in the...

Q: why does brain size matters

A: Human brain is the main action area for all the major function in the body . It has many sections kn...

Q: Which of the following properties is not common to all three muscle tissues?a. excitabilityb. the ne...

A: Muscular tissue consists of cells called muscle fibers that are specialized for contraction which al...

Q: How do microfilaments and microtubules differ?

A: The cytoskeleton is referred to as the network formed by interlinking filaments of protein present w...

Q: Why is it important for impulses from the atria to be delayed at the AV node before they pass into t...

A: Atriovenbtricular node can be described as one of the major region of electrical conduction system o...

Q: Define cardiac

A: Terminology refers to a set of specialised words specific to an area of study. This term is used in ...

Q: Define duodenum

A: In the digestive system, most of the digestion and absorption of nutrients occur in the small intest...

Q: understand how chemical reactions are symbolized bychemical equations;

A: Chemical reactions occur in the body when chemical bonds between atoms are formed or broken. Chemica...

Q: What effect does PTH have on osteoclasts, osteoblasts,the kidneys, the small intestine, and bone?

A: parathyroid hormone also called parathyrin hormone, is produced by the parathyroid glands. the parat...

Q: Define mesonephros

A: Urinary system consists of many organs like the kidney, ureters, urinary bladder and the purpose of ...

Q: Explain how stem cells and progenitor cells make possible the growth and repair of tissues.

A: Stem cells and progenitor cells make possible the growth and repair of tissues - a stem cell divides...

Q: 1) Explain the differences between different types of graded potentials? Don't copy from Google

A:   Generator potential Receptor potential Excitatory postsynaptic potential Inhibitory postsyna...

Q: Define cleavage

A: Cleavage is one of the important processes in the development of an embryo. It plays a major role in...

Q: What movements are produced by the three musclecompartments of the leg? Name the muscles of eachcomp...

A: Muscles are soft tissues that are composed of contractile proteins, actin and myosin. These proteins...

Q: Trace a drop of blood from the ascending aorta to the right coronary artery, and trace the blood bac...

A: The cardiovascular system consists of the heart, the blood vessels, and most importantly, the blood....

Q: In a essay describe three regions of the cerebrum and functions?

A: The cerebrum is the largest a part of the brain, spanning all three cranial fossae. The composite pa...

Q: Explain why athletes who excel at short sprints probably havefewer slow oxidative fibers in their le...

A: The skeletal muscle fibers are comprised of three different types of muscle fibers. These help in mo...

Q: Which type(s) of cell junction prevent(s)substances from moving through the space between cells? Whi...

A: Cell junction or cell bridge is a cellular structure made up of many protein fibers that induce cont...

Q: Define lymph node

A: The lymphatic system consists of lymphatic ducts and vessels, lymph nodes and the lymphatic organ. T...

Q: In  a  essay  describe three regions of the cerebrum and give examples?

A: The cerebrum is the supreme center of Intelligence that is all conscious thought process and intelle...

Q: Which hormones are necessary for differentiation of white blood cells from hematopoietic stem cells ...

A: Our immune system relies heavily on white blood cells (leukocytes). These cells are essential for go...

Q: What capillaries and postcapillary venuleshave in common with respect to fluidexchange

A: The organs that function to circulate the blood in the cardiovascular system are defined as the bloo...

Q: How is macular degeneration characterized?

A: Macular degeneration is a health condition. Which is related to the eyes. It is commonly called age-...

Q: What are the two types of bone marrow and what are their functions?

A: Bone marrow is the spongy tissue inside some of your bones, such as your hip and thigh bones. It con...

Q: In an essay give examples of sympathetic and parasympathetic organs?

A: The central and the peripheral nervous system are the two main divisions of a vertebrate’s nervous s...

Q: How do sensory receptors collect information?

A: SENSORY RECEPTORS : sensory receptors respond to the adequate stimulus with the lowest threshold , r...

Q: (a) How is cerebrospinal fluid formed and drained? Describe its pathway within and around the brain....

A: The brain consists of the cerebrum, cerebellum and brainstem. It controls most of the activities of ...

Q: Write the Summary of the effects of Active and Passive Mechanisms on Vascular Resistance?

A: The resistance in the circulatory system that is used to generate blood pressure, blood flow, and is...

Q: How is osmolarity the same inside and outside of the cell if the ions are different on both sides?

A: Osmosis is a process where water (solvent) diffuses from the region of high concentration to the reg...

Q: Define estrogens

A: The endocrine system consists of glands like pituitary glands and organs like reproductive organs (t...

Q: In a healthy person at rest, what are the gas pressures at the end of the pulmonary capillaries rela...

A: A group of organs and tissues that help us to breathe are called the human respiratory system. The p...

Q: Label and examine the photomicrograph of nervous tissue in Figure. Compare the sizes of the neuron a...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: Define diploë

A: Bone (osseous) tissue is the structural and supportive connective tissue of the body that forms the ...

Q: What are major components of the nuclear lamina.They contribute to genome organization as well as to...

A: The nucleus is the core of the cell which commands the metabolic events. The nucleus is the reposito...

Q: Identify the major vessels involved in coronary circulation

A: The heart is a pumping device that pumps blood in a closed circuit of blood vessels. This muscular o...

Q: Why are vitamins and minerals essential components of the diet?

A: Nutrition is defined as the assimilation of food materials that enable us to grow, maintain ourselve...

Q: name the principal sutures that join the bones of the skull;

A: The skull is a component of the skeleton supporting the structure and musculature of the face and en...

Q: (a) Which men would have a higher testicular temperature, those who wear briefs or those who wear bo...

A: In humans, the male reproductive system consists of external and internal organs which are responsib...

Q: Match the adrenal hormones with their source and actions. (1) cortisol (2) aldosterone (3) epinephri...

A: Hormones are chemical messengers which are secreted by endocrine glands and transported through the ...

Q: Describe the structure and function of the integumentary system

A: The human body is made up of complex systems. They all perform various activities. The entire system...

Q: List the characteristics of life and the processes carried out by living organisms

A: Life is a characteristic that distinguishes a living entity based on certain biological processes th...

Q: Define areolar gland

A: Mammary glands in humans are modified sweat glands,  present in the breast, overlying the pectoralis...