During sarcomere contraction, which of the following does NOT change length? A the distance between the Z-lines В the length of the I bands C the length of the A-bands none of the above change length

Q: easy way of the structure of the digestive system

A: Digestion is the process of breakdown of macromolecules into micro molecules for effective absorptio...

Q: 1. What causes osteoporosis? a. activity of osteoclasts out-paces activity of osteoblasts b. activit...

A: Osteoporosis is a condition, mostly seen in elderly populations, where the bone becomes brittle and ...

Q: List the steps in the action of most nonsteroid hormones.

A: Non-steroidal hormones are made up of amino acids and are not soluble in fat. Thus cannot be diffuse...

Q: Please explain why you would, most likely, get sick when you touch a contaminated surface with your ...

A: Germs are minor creatures which are so little they cannot be seen without the assistance of a specia...

Q: What is the major shortcoming of the flexibility allowed by the shoulder joint?

A: A joint is a connection between two bones in the skeletal system. Joints provide means for the movem...

Q: Please post about a respiratory system disorder or disease of the human body.  It must be over 100 w...

A: The respiratory system is the network of organs and tissues that offer assistance to breathe. It inc...

Q: Epinephrine and norepinephrine are chemicals that act as both neurotransmitters and hormones. Descri...

A: Neurotransmitters are chemical messengers released by the neuron in an enclosed vesicle that send a ...

Q: What effect would vasoconstriction of peripheral blood vessels have on body temperature on a hot day...

A: The shrinking of the blood vessels is called vasoconstriction.

Q: Which of the following rows correctly identifies the development of the germ layers? Select one: a...

A: Fusion of a sperm with an egg cell (fertilization) gives rise to a diploid zygote. The zygote underg...

Q: Can you help me identify the white box locations?

A: The cardiovascular system is an organ system which distributes blood to all the parts of the body wi...

Q: Trace blood flow through the cardiovascular system

A: The cardiovascular system is the organ system that is responsible for the transport of gases and nut...

Q: How does cellular respiration play a role in thyroid hormone?

A: Thyroid hormones are the hormones produced by the thyroid glands and are, namely, T3 and T4. These a...

Q: The autonomic nervous system has two parts that counterbalance each other; these are the____________...

A: Autonomic neural system consists of a special set of peripheral nerves that innervate visceral organ...

Q: For our patient John with diabetes type II, he can make insulin but his body cells can be resistant ...

A: Increase in the blood sugar levels is sensed by the pancreas and the beta cells within the pancreas ...

Q: How do the urethras of a male and female differ?

A: The body of males and females are different from each other in many aspects, such as in terms of phy...

Q: What are the six characteristics of living things? Brieflyexplain each

A: The world consists of both living and non-living things that interact with each other and also influ...

Q: Name the structures innervated by the cervical plexus.Describe the makeup of the phrenic nerve.

A: The cervical plexus refers to the anterior rami's plexus that supplies to the region of the neck and...

Q: Bile is transported through the a. lacteals. b. accessory pancreatic duct. c. cystic duct. d. teniae...

A: The process of conversion of complex food substances to simple absorbable forms is called digestion ...

Q: What is the difference between chromatin and chromosomes?

A: DNA STRUCTURE : the DNA is packed by special proteins called histones to form chromatin . The chroma...

Q: Why are the olfactory tracts not called olfactory nerves?

A: The olfactory tract is afferent nerve fibres of bilateral packet from the mitral and tufted cells of...

Q: Describe the two phases of swallowing, noting the organs involved and the activities that occur.

A: The act of swallowing has voluntary and involuntary components. The preparatory/oral phase is volunt...

Q: Which of the following graphs illustrates the cyclical variation in progesterone levels for a nonpre...

A: Menstruation is a complex process that takes place after puberty in every female for about 28 days. ...

Q: If you eat salty pretzels without drinking, what happens to the volume of your extracellular fluid? ...

A: Salty pretzels are snacks that comprise fewer calories but are highly rich in salt, and they can cau...

Q: Slide A Slide B Which of the above slides represents skin from the scalp, verses that of the foot? E...

A: The scalp is the head region that contains numerous hair follicles and sebaceous glands. It receives...

Q: The maximum amount of air that can be expired after a maximum inspiration is a. the tidal volume. b....

A: The breathing process consists of two-stage known as inspiration and expiration. It helps to exchang...

Q: Which of these terms is correctly matched with its definition ordescription?a. depolarization: membr...

A: Neuron or nerve cells are cells that act as messengers, they are able to undergo  electrical excitat...

Q: Define keratinocyte

A: The epidermis is the peripheral layer of the skin. It is the layer which can be seen by eyes. It con...

Q: Select the statement that is accurate concerning osteoid. It is the inorganic part of the matrix of ...

A: Introduction: Bone refers to the rigid tissue that makes the skeletal system invertebrates. The bone...

Q: Instruction: Explain all answers of number 1 in 4-5 sentences. For number 2, in every comparison, w...

A: An organ system is a collection of body organs that are working together for the sustenance of an or...

Q: Describe the difference between a somatic and visceral reflex.

A: A reflex is an automatic and almost instant reaction in response to the stimulus. The reflex is an u...

Q: Describe the location of the body cavities and name the organs they contain

A: Any room, pocket, or possible space in the animal body is referred to as a body cavity. Organs and o...

Q: Explain the typical signs associated with acute myocardial infarction.

A: In individuals, the condition of heart attack is clinically referred to as myocardial infarction. Th...

Q: Why does the blind spot from the optic disc in either eye not result in a blind spot in the visual f...

A: The blind spot is the place where the blood vessels and optic nerve leave the eyeball.  The visual f...

Q: Identify specific structures of a neuron Neurons: dendrites, cell body, axon Neuroglia Sensory neuro...

A: Neurons are the brain's basic units and the nervous system; these cells receive sensory feedback, se...

Q: Can you help me identify what this structure is and the parts of it?

A: Heart  Heart is a mesodermal origin. It is located in the thoracic (chest) cavity(under the rib cage...

Q: Explain the signs and characteristics of true labor.

A: A contraction is when the muscles of your uterus tighten up like a fist and then loosen up. Contract...

Q: Distinguish between the coverings of the heart and the layers that compose the wall of the heart.

A: The cardiovascular system consists of the heart, the blood vessels and the blood.The heart is a holl...

Q: The primary action of tensor fasciae latae is Adduction of the thigh at the hip Abduction of the ...

A: In the human body, the movements were described with respect to the anatomical position of the body ...

Q: 2.Explain why the following statement is false and explain the correct answer: Neurotransmitters can...

A: Neurotransmitters are a type of chemical messengers secreted by our body that helps in the transmiss...

Q: . List the muscles that cause flexion and extension of theelbow. Where are these muscles located?

A: The visible synovial hinge joint between the upper arm's humerus and lower arm's radius and ulna bon...

Q: Define bone marrow

A: The body and its organs are supported and protected by bones. They also help muscle mobility by prod...

Q: Define collagen

A: Proteins consist of massive biomolecules or macromolecules comprising one or more long amino acid re...

Q: Describe as many different movements of the joints of the upper and lower limb when swimming in the ...

A: Swimming can be described as a non-weight bearing exercise that requires various upper and lower lim...

Q: Please answer 5 and all 6 with explanation it’s not graded, thanks

A: The presence of masculine characters in a female can be due to chromosomal aberration.

Q: Where is the pituitary gland located?

A: The pituitary gland is the second most crucial organ of the endocrine system that regulates the acti...

Q: define several terms that denote surface features of bones.

A: A bone is a living tissue which makes up the skeleton of the body and is one of the hardest structur...

Q: When a child’s bone is fractured, growth may bestimulated at the epiphyseal plate of that bone. What...

A: Introduction: Skeleton includes cartilages and bone. It forms the body's major supporting framework ...

Q: Define diffusion, osmosis, hyper-, hypo-, and isotonicity.

A:  Different mechanisms are used to transport molecules across the plasma membrane. The plasma membran...

Q: (a) Define hemostasis. (b) List the three major phases of coagulation. Explain what initiates each p...

A: ( a )  HEMOSTASIS : hemostasis or haemostasis is a process to prevent and stop bleeding , meaning to...

Q: Which bone structure is involved in blood cell production when considering the adult skeleton? artic...

A: The mechanism through which the body synthesises the components of blood is known as hematopoiesis. ...