Events in Visual Perception 1. Potassium channels opens, allowing potassium ions to move out. 2. Some sodium channels open in the dendrite. 3. All ion channels close and the Na+/K+ exchange pump starts working. 4. Sodium ions diffuse toward a node of Ranvier. 5. Lights hit the retina. 6. The threshold level is reached at the node of Ranvier. 7. Many sodium channels open in the axon membrane, allowing sodium ions to move in. List, in order, the events in visual perception that must occur for a person to see an object: and

Q: Describe the mechanisms that prevent food from enteringthe nasal cavity and larynx during swallowing

A: In order to properly absorb all the nutrients from the body, the ingested food must be digested, and...

Q: What are Korotkoff sounds?

A: Understanding the physiology and adequate measurement techniques are significant for quality patient...

Q: Explain the difference between cell-mediated (cellular) immunity and antibody-mediated (humoral) imm...

A: Immunity can be defined as the mechanism in which the body resists towards the attack of the pathoge...

Q: Define cofactor.

A: Enzymes are the biocatalyst in the body. They speed up the various chemical reactions in the body wi...

Q: The body's ability to adapt to changing energy needs and substrate availability is called metabolic ...

A: Metabolic flexibility is basically the ability of an organism to respond or adapt to changes in meta...

Q: A 30-year old woman dies after a short illness beginning in the late stages of labor. At autopsy, bl...

A: Embolism:Also called or known as thromboembolism, it is defined as a block in any of the arteries of...

Q: 8 ET tube has a s

A: An endotracheal tube is a kind of flexible tube which is placed via the mouth into the windpipe in o...

Q: Which of the following terms or phrases refer to the female pelvis? Wider, shorter sacrum; cavity na...

A: The pelvis can be described as the skeleton present at the lower portion of the trunk between the th...

Q: To what degree is the substance filtered at the renal corpuscle?

A: The urinary system in humans comprises a pair of kidneys, each of which are present on the left and ...

Q: (Short Answer - 8 Sentences Max) Maintaining pH homeostasis is critical for our body cells to remain...

A: The potential of hydrogen, abbreviated as pH, indicates the idea of the basic and the acidic nature ...

Q: Identify the characteristics of the plasma membrane,cytoplasm, and nucleus

A: Cell's outer covering is known as the plasma membrane. It separates the cells' interior from the out...

Q: Identify the structure indicated by the arrow: Copyright Nielsen & Miller

A: The skeletal system of the body comprises all the bones and joints in the body. The bones which form...

Q: Does a human have a tail?

A: Generally, when humans are born, they do not consist of a tail. But tail appears in humans during th...

Q: One of the necessary life functions is maintaining boundaries between internal and external environm...

A: Organisms need or must maintain a set of necessary life functions in order for them to survive and s...

Q: Epimysium relates to entire muscle as endomysium relates to a. muscle fiber b. myofibril c. muscle f...

A: The endomysium is responsible for the separation of individual muscle fibers from one another. It is...

Q: What structures are responsible for the large surface area of the small intestine?

A: Introduction: The small intestine belongs to the digestive system, and a major part of the absorptio...

Q: Hi, please help me with these questions, I will be so thankful . A layer of dense, irregular connect...

A: Dense irregular connective tissue is the intracellular matrix comprises of an irregular network of c...

Q: Concerning concentration differences across the plasma membrane,there isa. more K+ and Na+ outside t...

A: A semipermeable membrane that separates the cell's internal space from the extracellular compartment...

Q: Describe mediated transport.

A: Mediated transport is the process in which the transport proteins facilitate passage of ions and mol...

Q: Describe the causes of edema.

A: The body of a human is a physical substance of the human organism. It is composed of extracellular m...

Q: How does parathyroid hormone maintain calcium homeostasis?

A: The parathyroid gland is located in the neck at the surface of the thyroid gland. It is a pea-size g...

Q: Because of a brain lesion, a certain patient never feels full, but eats so excessively that she now ...

A: The human forebrain consists of cerebrum and diencephalon. The diencephalon further has three parts....

Q: Explain the function & description of Red blood cells ?

A: The components of blood cells that are synthesized by the process of erythropoiesis in the red bone ...

Q: Illustrate the structure of a synovial joint and explainthe roles of the components of a synovial jo...

A: Joints are the areas where two bones meet in the presence of tissues . Various types of motions are ...

Q: Which is not a type of endocytotic vesicular transport? a. engulfment of microorganismsb. nutrient a...

A: A vesicular transport is an active transport process that uses energy molecules like ATP to transpor...

Q: According to the size principle, which motor unit will be recruited first for a task? a. the motor u...

A: A motor unit is the fundamental working unit of skeletal muscles that is composed of a motor (effere...

Q: Describe the general characteristics of blood, and discuss its major functions.

A: The fluid body present in animals is known as blood. It is composed of plasma and formed elements. P...

Q: Identify the major anatomical features of the jaw,shoulder, elbow, hip, knee, and ankle joints?

A: Anatomy is the science that studies the structure of the body. three main anatomical planes divide t...

Q: Fill in the blank with the appropriate term. 1. Proteins are hydrolyzed into and absorbed as _______...

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for...

Q: In an experiment, it was determined that the motor (effector) neuron for muscle fibre 1 had a thresh...

A: A skeletal muscle fiber will be stimulated only if the stimulus is as strong as its threshold. Stimu...

Q: True or false. Salts contain cations including H+ and anions including OH- True False

A: An ion is a particle, atom or molecule with a net electrical charge. Positively charged ions are cal...

Q: What is the role of the electrical synapses?

A: Synapse is a neuronal junction where transmission of nerve impulses occur between two neurons or mus...

Q: __________ is highly vascularized and responsible for most types of movement. a. connective b. epith...

A: Animal tissues are classified into four basic types such as epithelial tissue, connective tissue, mu...

Q: (Short Answer - 5 Sentences max) Describe the standard anatomical body position and explain why it i...

A: Anatomical position is the description of any part or region of the body in a specific stance.  Ther...

Q: In which part of the cell does glycolysis occur? a. plasma membrane b. nucleus c. cytosol d. mitocho...

A: Glycolysis is a part of all the biochemical reactions that occur in the body. It is a type of metabo...

Q: Bioenergetics The ATP-PCr metabolic system can best be described as a. aerobic b. glycolytic c. subs...

A: ATP-PCr system also known as phosphagen system. It comprises of adenosine triphosphate (ATP) and pho...

Q: Which are two types of incontinence?

A: Incontinence is a condition in which the individual failed to control. The two types of incontinence...

Q: Name the erectile tissues of the penis, and describe theirlocations relative to each other.

A:  The anatomy of the penis is complicated mainly comprised of three separate cylinders. Corpora caver...

Q: Stored Energy OATP + water + ATPase = a. ADP + Pi + energy b. ADP + ATPase + heat C. ADP + Pi + Pi d...

A: Adenosine triphosphate is a biomolecule that stores energy in the form of phosphate bonds, and the e...

Q: Which statement is true about lymph nodes?a. Cancerous lymph nodes are swollen and tender tothe touc...

A: The immune system of the human is made up of special organs, chemicals, and cells that fight infecti...

Q: (Short Answer - 7 Sentences Max) Phospholipids make up 75% of the lipids of the plasma membrane. Des...

A: Phospholipids are arranged in a bilayer and form a selectively permeable membrane barrier that form ...

Q: Name the two main branches of the right coronary artery?

A: The right coronary artery is referred to as the blood vessel that originates from the right cusp in ...

Q: Define adrenergic neuron

A: The chemicals that are transported across the synapses present between two neurons are called neurot...

Q: 10. Which of the following explains how you can find the cardiac output volume? a. Subtract the numb...

A: The heart has four chambers, two atria, and two ventricles. Oxygen-poor blood from the various parts...

Q: __________ is the most widely distributed and abundant tissue type. a. connectiveb. epithelialc. ner...

A: There are many types of tissues that are present in our body, and each of these tissues are speciali...

Q: Name the subdivisions of the extracellular fluid compartment.

A: The extracellular fluid compartment can be defined as the type of compartment present outside the ce...

Q: How might reduced segmental contractions affect the digestive process?

A: Human gastrointestinal motility follows three basic patterns: segmentation contractions, peristalsis...

Q: Evaluate the risk of using hormones and antibiotics on animals raised for food.

A: Antibiotics are used in animal farming to prevent the spread of diseases due to poor maintenance. Gr...

Q: Type- 2 diabetes mellitus is: 1.both a secondary pathology and usually the result of inappropriate h...

A:    Glucagon and insulin are two major hormone produced by the exocrine cells of pancreas and regulat...

Q: give some examples of cell inclusions and explain howinclusions differ from organelles.

A: Cytology can be defined as the study of the form and structure of cells as well as the organelles pr...