A patient has enlarged right inguinal lymph nodes that are very tender to the touch. Examination of the feet reveals a small cut between the right 3rd and 4th toes, which are warm and red. What would your initial impression be, and why are the lymph nodes enlarged?

Q: Describe the microscopic anatomy of a skeletal muscle fiber.

A: Microscopic anatomy: The research of natural structure of an organism under the microscope. Known  m...

Q: During embryonic development, what features do we share with tunicates or lancelets?

A: In developmental biology, embryonic development, also known as embryogenesis, is the development of ...

Q: Why does breathing through the mouth dry out the throat?

A: Normal ventilatory patterns include normal inspiration and expiration; it means the tidal volume and...

Q: Considering that the GI tract consists of layers of muscles (see Fig. 9.2), why might exercise help ...

A: GERD, also known as Gastroesophageal reflux disease, is a condition associated with the digestive sy...

Q: A man swam in a cold lake for an hour and then noticed that his scrotum was shrunken and wrinkled. H...

A: The scrotum is a sac of skin that hangs from the body at the front of the pelvis, between the legs. ...

Q: Compare the layers of the pericardium and the heart wall.

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

Q: Explain how sounds of different frequencies are detected in the cochlea

A: The ear is the listening organ in animals. The ear is commonly defined in mammals as possessing thre...

Q: During exercise more oxygen is delivered to the muscles because a. active muscles produce more CO2...

A: Muscle contraction occurs when the thin actin and dense myosin filaments slip through each other. Th...

Q: How are joint mobility and stability related?

A: Joint mobility is defined as the degree to which the articulation or the meeting area of two bones i...

Q: What is the role of kidney in maintaining the blood pressure regulation with explanation

A: The renal system is the principal organ system of the organisms’ body, comprising two kidneys, a bla...

Q: How does our eyes perceive the varied colors of fishes in coral reefs? Why do these fishes have vari...

A: Coral reefs are the structures found in coastal areas where there is a large deposit of calcium carb...

Q: The inner thigh relative to the outer thigh would be:

A: The thigh bears much of the load of the body’s weight when a person is upright. It contains many mus...

Q: What are three functions of ATP in muscle contraction?

A: The muscle tissue present in the human body is primarily responsible for the movement in the body. T...

Q: Tiffany had returned to her college dorm and was having difficulty breathing. She knew she was havin...

A: An allergy is a response of the immune system to substances that are not harmful to the body. The im...

Q: Can melanoma be hereditary?

A: The skin cancer melanoma is occur in melanocytes. Melanocytes are melanin producing cells lies just ...

Q: Which of the following is not true about human and ape skeletons?a. Humans have a long, narrow pelvi...

A: Humans and apes are primates whose body similarities demonstrated that they have common ancestors. I...

Q: A woman has stretch marks on her abdomen, yet she states that she hasnever been pregnant. Is this po...

A: Stretch marks are the scars or streaks formed on the skin at the region of abdomen, thigh, breast, a...

Q: Name the layers of the GI tract that are described. ______________________ 1. The layer that contrac...

A: The gastrointestinal (GI) tract is a series of organs that are interconnected in a twisted long tube...

Q: Describe the attachments of a spinal nerve to the spinal cord.

A: A spinal nerve is a mixed nerve, which carries motor, sensory, and autonomic signals between the spi...

Q: Watson and Crick’s discovery of DNA is clearly one of the most importantbiological discoveries in th...

A: Watson and Crick discover the DNA structure in the 1950s. DNA is the deoxyribonucleic acid complex m...

Q: The feet relative to the hips would be :

A: In medical terminology, directional terms help to locate the position of a specific structure with r...

Q: A person can survive destruction of an entire cerebral hemisphere but cannot survive destruction of ...

A: The brain is divided into three major parts, the cerebrum, the cerebellum, and the brainstem. The ce...

Q: What effect does calcitonin have on osteoclasts,osteoblasts, and blood calcium levels? What stimulus...

A: Introduction: The process of formation of a new bone is referred to as ossification.  Ossification i...

Q: Where is a ganglionic neuron cell body located?

A: Introduction: Ganglia is an ovoid-shaped structure comprising cell bodies of glial cells and neurons...

Q: Explain how hormones control appetite.

A: Appetite is the desire to eat food, sometimes due to hunger. Appealing foods can stimulate appetite ...

Q: Describe how sensory systems function; include descriptions of sensory receptors, energy transductio...

A: The sensory system is a part of the nervous system that helps the animals to interact with their env...

Q: List the major effects of activation of the sympathetic nervous system during stress.

A: The sympathetic nervous system (SNS), a division of the autonomic nervous system, functions to contr...

Q: hat type of stent would you not use in case of a risk of aneurysma? pil & grafted stent Grafted-sten...

A: The localized widening of a artery is normally called as aneurysm. The aorta is the largest artery a...

Q: How does the vasomotor center control peripheral resistance?

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

Q: Describe three ways in which carbon dioxide can be transported.

A: It is a vital blood gas that is a by-product of many metabolic processes, including glucose and fat ...

Q: Explain "Motor areas of the cerebral cortex " and also explain it with the help of diagrams?

A: The motor cortex is part of cerebral cortex which is responsible for controlling all the voluntary f...

Q: 12. is the study of the general nature of morals and of the specific moral choices to be made by a p...

A: Ethics is the study of moral principles and morality of a person. This governs the person's action, ...

Q: List and describe the major functions of connective tissue.

A: Connective tissues are tissues that are involved in maintaining the basic framework of the body. The...

Q: Through which foramen does the glossopharyngeal (IX) nerve exit the skull?

A: The glossopharyngeal nerve, known as the ninth cranial nerve (CN IX), is a mixed nerve that carries ...

Q: Describe the layers of the GI tract walls and the peritoneum

A: GI tract is a gastrointestinal tract which is also known as the digestive tract. It is a hollow tubu...

Q: As a consequence of sex, the number of possible genetic outcomes isa. doubled. c. halved.b. unaffect...

A: When exchanging the genetic material occurs between the two different chromosomes or different areas...

Q: Besides preparing food for swallowing, the tongue has another role. What is it?

A: The tongue is defined as the muscular organ, present in the mouth of the majority of vertebrates. It...

Q: Describe how body fluids are distributed in compartments

A: Body fluids, bodily fluids, or biofluids are liquids within the human body. In lean healthy adult me...

Q: What is the name of a depression between two adjacentsurface folds in the telencephalon?

A: Introduction: The anterior-most secondary brain vesicle that develops during the fifth week of pregn...

Q: Name, in order, the vessels of pulmonary circulation,beginning with the right ventricle.

A: The heart and the arteries and veins that convey blood throughout the body, consists of circulatory ...

Q: Describe the distribution of the ventral rami of thethoracic region.

A: Ventral ramus or rami is the branch of the spinal nerve from its anterior side. It is responsible fo...

Q: Under which of the following conditions would you expect an increase in antidiuretic hormone secreti...

A: The body fluids are referred to as fluid present in various tissues of the human body. These fluids ...

Q: Compare the muscles used (if any) in a resting expirationwith those used in a forced expiration.

A: The human body requires sufficient amounts of oxygen to produce energy needed for execution of vario...

Q: What is a tissue?

A: The human body, animal body, or plant body are complex structures made of many systems that facilita...

Q: What is the modality and location in the skin of Merkel discs?

A: Merkel discs are the nerve endings that are not capsulated. These encapsulated endings are the senso...

Q: Distinguish among uniaxial, biaxial, and multiaxialsynovial joints

A: A synovial joint is a free-moving joint also known as a diarthrosis. It connects the bone with the c...

Q: In certain diseases, such as kidney failure, the Na+ concentration in thebody’s extracellular fluid ...

A: Kidneys are vital for maintaining the balance of nutrients and minerals in the blood plasma. Renal h...

Q: What type of intercellular junction provides resistance tomechanical stress at a single point?

A: Intracellular junctions, also called cell junctions, are the cellular structures comprised of protei...

Q: Q1)Explain hydrocephalus along pathophysiological mechanism implied in the cerebrospinal fluid produ...

A: The condition in which there is a pathological accumulation of cerebrospinal fluid within the spaces...

Q: Describe the effects of the drug atropine and explain these effects in terms of the actions of the p...

A: Atropine decreases secretions in the mouth. Respiratory passages relieve respiratory tract constrict...