The following event received worldwide attention in 1962: A boy playing in a train yard fell under a train, and his right arm was cut off cleanly by the wheels. Surgeons reattached the arm, sewing nerves and vessels back together. The surgery proceeded very well. The arm immediately regained its blood supply, yet the boy could not move the limb or feel anything in it for months. Explain why it took longer to reestablish innervation than circulation.

Q: explain tbe roles of microorganisms is ecosystems and biotechnology

A: Animals are small part of an ecosystem. In an ecosystem, organisms work together. Ecosystem has many...

Q: Explain what is neuroplasticity and why is this important  in the case of Phineas Gage?

A: Brain reorganization takes place by means such as "axonal sprouting" in which healthy axons mature n...

Q: The foramen ovale causes the fetal circulatory system to bypass the ________.a. liverb. lungsc. kidn...

A: We can say that A shunt is illustrated as an anatomical diversion that permits the flow of blood to ...

Q: Where does the optic nerve start and where does it end?

A: The eyes are the structures involved in recognizing visual stimuli (sight) and sending appropriate s...

Q: 14. Identify the blood vessel at the white arrow.

A: The human circulatory system is one of the major eleven organ systems in the human body and is respo...

Q: A.   Dyan at a young age  is attracted to tattoo. So in her  20th  year she undergone tattoing. Liza...

A: The biggest organ that covers the whole human body is the skin. Injuries, dangerous chemicals, harmf...

Q: How does the lack of an unresponsive period in skeletalmuscle fiber contraction explain wave summati...

A: We can say that The combination of responses from a motor unit that has had two or more stimuli appl...

Q: The site of the sella turcica is thea. sphenoid bone. c. frontal bone. e. temporal bone.b. maxillae....

A: The saddle-shaped depression in the human brain is the sella turcica. It is a cephalometric landmark...

Q: Question 3 Look at the figure below and you will notice that cellular contents are being released at...

A: We can say that Membrane transport involves the process of transport of molecules from the exterior ...

Q: The pacemaker that determines the heart rate Purkinje fibers The electrical gateway to the ventricle...

A: Human heart is myogenic that means it can generates its own electric impulses. In the heart several ...

Q: The inner cell mass of the blastocyst is destined to become the ________.a. embryob. trophoblastc. c...

A: Blastocyst refers to the composition exhibiting inner cell mass, which subsequently forms the embryo...

Q: If a diabetic’s breath smells like alcohol, what could this mean?

A: Diabetes is a metabolic disorder characterized by high blood glucose levels. Glucose is a monosaccha...

Q: Being nervous interferes with sexual arousal. Explain why, with reference to the sympathetic and par...

A: The central nervous system (CNS) and peripheral nervous system (PNS) are the two main nervous system...

Q: Work 2. Maintaining pH+ blood plasma. The boundaries of the normal value of pH PH+ shift to acidic s...

A: The number of hydrogen ions in a solution is used to calculate pH. The lower the pH, the more hydrog...

Q: What is the major difference between smooth muscle and skeletal muscle regarding the relaxation phas...

A: Smooth muscles are involuntary muscles that line the internal organs. They lack sarcomeres and are h...

Q: When the body temperature of ghost crabs is raised from 15°C to 24°C, resting metabolic rate and bot...

A: Some of the energy is utilized to generate ATP from ADP and Pi, but ATP is required immediately for ...

Q: Complete the table below. Write the structural features depending on the type of muscle tissue. Mus...

A: There are three types of muscles in body. These are: Skeletal muscle, smooth muscle and cardiac musc...

Q: How does lack of protein in the blood cause edema?

A: The disease is caused when there is a deviation from the normal. Any abnormality leads to the develo...

Q: Provide the anatomically proper names of the joints between (a) the scapula and clavicle, (b) the ar...

A: A joint is an articular surface where two or more bones of the skeleton get connected. The three maj...

Q: Indicate if the statements are TRUE or FALSE. Statements TRUE FALSE To initiate muscle contraction,...

A: Muscle is a type of contractile tissue that is organized into systems for increased efficiency. Musc...

Q: 2. Match each of the following characteristics with the correct connective tissue. a. parallel arran...

A: Cells grouped together forms tissue. There are four different types of tissues,  Epithelial tissue ...

Q: Where is the cell body of the ganglionic neuron located?

A: Introduction: Ganglia are ovoid structures consisting of the cell bodies of glial cells and neurons....

Q: (a) Name the four pairs of muscles that act together to compress the abdominal contents. (b) How do ...

A: Respiratory muscles are responsible for the inhalation and the exhalation process by the expansion a...

Q: What bones are most likely to be broken after a direct hit to the nose that results to a broken nose...

A: The bones of the inferior and anterior portion of the skull are known as facial bones. There are 14 ...

Q: Why does gout target the first MTPJ? (Hint: surprisingly, this is related to OA) What is the windlas...

A: A kind of arthritis characterized by significant joint pain, redness, and tenderness.When too much u...

Q: Distinguish between oxygen deficit and excesspostexercise oxygen consumption.

A: The consumption of oxygen is the measurement of the ability of an individual to inhale Oxygen and tr...

Q: Langerhans' cells are skin-resident macrophages.

A: Answer: Immune system is the system present in the body which helps in fighting against the foreign ...

Q: Þescribe the structure of a generalized plasma membrane. Include the major components (lipids, prote...

A: Plasma membrane is a cell membrane that separates the cell interior from the exterior world. 

Q: List four functional properties of smooth muscle that arenot seen in skeletal muscle. Can smooth mus...

A: The tissues are classified into connective, epithelial, muscle, and nervous tissues. Muscle tissues ...

Q: From deepest (closest to the brain) to superficial (farthest away from the brain), name the meninges...

A: In all vertebrate and most invertebrate creatures, the brain acts as the nerve system's focal point....

Q: What are the parts of the sternum?

A: The sternum is also known as the breast bone. It refers to the elongated, partially T-shaped bone in...

Q: What is uppermost strand? What is the second strand

A: The DNA in our body has two strands. One is the uppermost strand and the other one is the second or ...

Q: What ion is key to smooth muscle contraction? What arethe functions of this ion?

A: The tissues are classified into connective, nervous, epithelial, and muscle tissues. The muscle tiss...

Q: What is the importance of DNA replication before cell division?

A: DNA replication is an essential process and the basic mechanism is conserved in all organisms. Repli...

Q: Which of these three paracrine chemicals cause vasodilation?a. ATPb. adenosinec. nitric oxide

A: The cardiovascular system comprises of heart and blood vessels. Oxygenated blood from the heart will...

Q: In your anatomy course, you may be handed an isolated vertebra and asked to determine whether it is ...

A: Introduction: The vertebral column is also referred to as the spine, backbone, or spinal column. It ...

Q: Question 31 A central artery (arteriole) is contained within

A: We can say that In the human body, the resistance against the entry of any foreign particle or antig...

Q: Explain the  ruminant digestion.

A: There are four compartments that can be present in the stomach of the ruminants. These four compartm...

Q: Consider the following DNA sequence: CATGTGTAGTCTAAA. Address the followin questions: AWrite the seq...

A: In DNA,the genes are present.From these genes mRNA is formed by transcription. This mRNA undergoes t...

Q: Fill in each blank with the correct answer from the key. More than one answer may be correct.Key: (a...

A: Muscles flirt a part of every process of the body. The muscular network is assembled of numerous mus...

Q: The largest amount of water comes into the body via ________.a. metabolismb. foodsc. liquidsd. humid...

A: About 60% of the human body is made up of water. The presence of water in the human body is required...

Q: Briefly describe the anatomical characteristics and impairment of function seen in hip dysplasia.

A: Hip dysplasia: It occurs due to developmental problems in the hip joint. Hip dysplasia is a conditi...

Q: Lysozyme Microtubules Archeon tRI marrow molecule transport dimer protein degradation Protein synthe...

A: Cells are the structural and functional unit of an organism that contain specific cell organelles. A...

Q: Production of less than 50 mL/day of urine is called ________.a. normalb. polyuriac. oliguriad. anur...

A: Introduction: Urine is the fluid that is formed by the filtration of the blood. It is pale yellow, c...

Q: Let’s assume that the marbles are species of praying mantises and that the new environment consists ...

A: Some common mantis species were brought to North America from Asia and Europe. They consume butterfl...

Q: Indicate if the statements are TRUE or FALSE. Statements TRUE FALSE Hematopoiesis would most likely...

A: Muscles are important part of body. Body has about 600 muscles forming up a muscular system. These a...

Q: In the following example an enzyme is being inhibited. This is an example of Active site Inhibitor A...

A: The active site of an enzyme is specialized for substrate binding. Whereas in the allosteric site, a...

Q: Explain how enzyme works? name and describe at least three (3) differences between transcription fro...

A: Enzymes are the proteinaceous substance which synthesise produces very fastly . They basically do no...

Q: Label the microscope slide like the drawing in the right

A: The brain is most important organ of our body. It receive sensory inputs from the affected area then...

Q: Draw a simple circuit showing the path of odor signals from nasal epithelium to the olfactory bulb, ...

A: The olfactory system is principally accountable for generating the sense of smell and causes the tri...