Bio 169 final exam - Study guides, Class notes & Summaries

BIO 169 Final Exam (Chapters 13 - 24) | Questions And Answers Latest {} A+ Graded | 100% Verified

What is unique about a portal system? - Answer it is a circulatory pathway where blood can flow through two capillary beds, What parameters impact peripheral resistance to blood flow? - Answer viscosity, vessel length, vessel diameter How does fluid intake impact blood viscosity and resistance to flow? - Answer increased viscosity = greater resistance = decreased blood flow

What are the characteristics of an endocrine gland? - -Composed of secretory endocrine cells derived from an epithelium that is supported by a connective tissue framework. -extensive blood supply What is unique about thyroid hormone? - -it has a large concentration of iodide. -it is neither a protein or cholesterol based, they incorporate iodine as a active constituent -it has two forms (T3 (most active) & T4) How do lipid-soluble hormones exert their impact on cells? - being lipophilic...

The main site of gas exchange is thealveoli The walls of the alveoli are composed of two types of cells, type I and type II alveolar cells. The function of type II alveolar cells is tosecrete surfactant Complete the following statement using the choices below. Air moves out of the lungs when the pressure inside the lungs isgreater than the pressure in the atmosphere Intrapulmonary pressure is thepressure within the alveoli of the lungs The statement, "in a mixture of gases, the total pressu...

BIO 169 Final Exam (Answered) 109 Questions and Correct Answers, 100% Correct. 2025/2025.

BIO 169 Final Exam Study Guide | Questions And Answers Latest {} A+ Graded | 100% Verified

What are the functions of the endocrine system? - controls - reproduction, metabolism, growth/development, fluid/electrolyte balance, resistance to stress What are paracrine secretions? Traits? - Local hormone that enters interstitial fluid but affects only neighboring cells. Potent and secreted in small amounts, only when needed. They break down quickly. What hormones are secreted by the anterior pituitary gland? - ACTH-Adrenocorticotropic hormone. FSH-Follicle-stimulating hormone. GH...

The functional organization of the nervous system parallels that of the ________ system in many ways. ENDOCRINE ________ are chemical messengers that are released in one tissue and transported in the bloodstream to alter the activities of specific cells in other tissues. HORMONES The hypothalamus is an important organ in both the ________ and ________ systems. endocrine; nervous The pituitary hormone that causes the kidney to reduce water loss is ADH Thyroxine and calcitonin are secreted by ...

Bio 169 Final exam Study Guide with complete solutions Erythropoietin - Answer️️ -Is secreted by the kidney The function of the pericardial fluid is to - Answer️️ -reduce friction between the pericardial membranes Match the type of chemical messenger with its description. - Answer️️ -Autocrine: stimulates the cell that originally secreted it Endocrine: secreted by glands and cells; acts upon distant target tissues Paracrine: secreted by one cell; acts upon nearby cells Neuro...

BIO 169 Exam 1 (Answered) 99 Questions and Correct Answers, 100% Correct. Updated 2024/2025. Which of the following are important sources of resistance to blood flow? All of the Above A _________ allows an organ to recieve blood from more then one arterial source or drain blood into more then one vein. vascular anastomoses Arteries can be best defined as vessels that carry blood away from the heart. A decrease in hematocrit will result in a decrease in ____________ resulting in a decrea...