Domanda del libro di testo
Why are renal failure patients undergoing dialysis at risk for anemia and osteoporosis? What medications or supplements could you give them to prevent these problems?
1036
views
Ch. 25 The Urinary System
Hoehn, Haynes, Abbott12th EditionMarieb Human Anatomy & PhysiologyISBN: 9780138242732
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch. 1 The Human Body: An Orientation25
- Ch. 2 Chemistry Comes Alive24
- Ch. 3 Cells: The Living Units24
- Ch. 4 Tissue: The Living Fabric19
- Ch. 5 The Integumentary System12
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton14
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System25
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue23
- Ch. 12 The Central Nervous System25
- Ch. 13 The Peripheral Nervous System and Reflex Activity30
- Ch. 14 The Autonomic Nervous System16
- Ch. 15 The Special Senses26
- Ch. 16 The Endocrine System26
- Ch. 17 Blood27
- Ch. 18 The Cardiovascular System: The Heart25
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues16
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses27
- Ch. 22 The Respiratory System21
- Ch. 23 The Digestive System31
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System26
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System24
- Ch. 28 Pregnancy and Human Development25
- Ch. 29 Heredity11
Hoehn, Haynes, Abbott12th EditionMarieb Human Anatomy & PhysiologyISBN: 9780138242732Non è quello che usi tu?Cambia libro di testo
Capitolo 25, Problema 24
While repairing a frayed utility wire, Kevin, an experienced lineman, slips and falls to the ground. Medical examination reveals a fracture of his lower spine and transection of the lumbar region of the spinal cord. How will Kevin's micturition be controlled from this point on? Will he ever again feel the need to void? Will there be dribbling of urine between voidings? Explain the reasoning behind all your responses.
Guida verificata passo dopo passo1
Step 1: Understand the anatomy involved. The lumbar region of the spinal cord controls lower body functions, including the bladder's micturition reflex, which involves both autonomic and somatic nervous system components.
Step 2: Recognize that a transection at the lumbar level disrupts communication between the brain and the lower spinal cord segments responsible for voluntary control of urination, leading to loss of voluntary control over micturition.
Step 3: Identify that the micturition reflex may still occur via spinal reflex arcs below the lesion, meaning the bladder can contract reflexively without brain input, but the sensation of bladder fullness (the need to void) will likely be lost because sensory signals cannot reach the brain.
Step 4: Understand that without voluntary control and proper coordination, incomplete emptying of the bladder can occur, causing dribbling of urine between voidings due to overflow incontinence or reflex bladder contractions.
Step 5: Summarize that Kevin will not feel the need to void consciously, micturition will be reflexive and uncoordinated, and dribbling of urine is expected due to loss of voluntary sphincter control and impaired bladder emptying.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
2mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Anatomy and Function of the Lumbar Spinal Cord in Micturition
The lumbar spinal cord contains important neural circuits that control bladder function, including sympathetic and somatic pathways. Damage at this level disrupts communication between the brain and lower urinary tract, affecting voluntary and involuntary control of urination.
Video consigliato:
Percorso guidato
06:04
Functional Groups
Types of Neurogenic Bladder Resulting from Spinal Cord Injury
Spinal cord injuries can cause different bladder dysfunctions, such as areflexic (flaccid) or reflex (spastic) bladder, depending on the injury site. A lumbar transection typically leads to an areflexic bladder, causing loss of bladder contraction and impaired sensation, resulting in urinary retention and dribbling.
Video consigliato:
06:27Smooth Muscle Tissue
Neural Control of Micturition and Sensory Feedback Mechanisms
Micturition is controlled by a complex interaction between sensory input from the bladder, spinal cord reflexes, and higher brain centers. After lumbar spinal cord transection, sensory signals about bladder fullness may not reach the brain, so the patient may not feel the urge to void, leading to incontinence and dribbling.
Video consigliato:
1:52External Regulation – Neural Mechanisms
Pratica correlata
Domanda del libro di testo
Patty, aged 55, is awakened by excruciating pain that radiates from her right abdomen to the loin and groin regions on the same side. The pain is not continuous but recurs at intervals of 3 to 4 minutes. Diagnose her problem, and cite factors that might favor its occurrence.
767
views
Domanda del libro di testo
Mrs. Bigda, a 60-year-old woman, was brought to the hospital by the police after falling to the pavement. She is found to have alcoholic hepatitis. She is put on a salt- and protein-restricted diet and diuretics are prescribed to manage her ascites (accumulated fluid in the peritoneal cavity). How will diuretics reduce this excess fluid? Name and describe the mechanisms of action of three types of diuretics. Why is her diet salt-restricted?
750
views
Domanda del libro di testo
Explain why the filtrate becomes hypotonic as it flows through the ascending limb of the nephron loop. Also explain why the filtrate at the bend of the nephron loop (and the interstitial fluid of the deep portions of the medulla) is hypertonic.
1381
views
1
rank
Domanda del libro di testo
How does aldosterone modify the chemical composition of urine?
944
views