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Class Notes (1,032,755)
AUS (35,063)
ACU (1,768)
BIOL (263)
BIOL125 (51)

Class Notes for BIOL125 at Australian Catholic University

Human Biology 1

BIOL125 Lecture Notes - Lecture 1: Sliding Filament Theory, Endoplasmic Reticulum, Cardiac Muscle

Calciums role in heart muscle contraction: Calciummediated cardiac muscle contraction via the sliding filament mechanism. Cardiac muscle forms these instead of the triads formed between the sarcoplasmic reticulum in skelet...

Biological Sciences
BIOL125
Fiona Ballard
BIOL125 Lecture Notes - Lecture 2: Centriole, S Phase, Organelle

Interphase Stages When a cell is growing, carrying out cell processes and carrying out its DNA. You dont want a cell to be dividing and replicating at the same time. It is between mitosis and the next mitosis. It is a peri...

Biological Sciences
BIOL125
Fiona Ballard
BIOL125 Lecture Notes - Lecture 3: Inferior Vena Cava, Pulmonary Valve, Pulmonary Artery

Cardiovascular system and blood Blood Flow Through Heart "Because Victoria considers routine a terribly vital, recognizable venture, perishing violence, promising all Love" 1. Body (Deoxygenated) 2. Vena Cava - Superi...

Biological Sciences
BIOL125
Fiona Ballard
BIOL125 Lecture Notes - Lecture 4: External Intercostal Muscles, Exhalation, Vasodilation

Extra answers from the very last lecture: Is there a difference between how most oxygen and most carbon dioxide is carried in blood? oxygen on Hb carbon dioxide as bicarbonate ion if my blood pCO2 was below 40 mmHg, would ...

Biological Sciences
BIOL125
Fiona Ballard
BIOL125 Lecture Notes - Lecture 8: Sine Wave, Tunica Media, Varicose Veins

BIOL week 8 LC Anatomy of the Vascular System The CVS: Blood Vessels The blood vessels of the body form a closed delivery system that begins and ends at the heart (blood cannot escape remains in the circulation) Blood ve...

Biological Sciences
BIOL125
hermant
BIOL125 Lecture Notes - Lecture 9: Autoregulation, Nitric Oxide, Sympathetic Nervous System

BIOL week 9 LC Control of Blood Flow. Exerciseinduced changes to CVS function Three Cardiovascular Pressures Blood flows in one direction through body due to the pumping action of the heart and pressure differences in vas...

Biological Sciences
BIOL125
hermant
BIOL125 Lecture Notes - Lecture 5: Endomysium, Ultimate Tensile Strength, Epimysium

Muscle cells (like neurons) have excitabilityirritability due to a polarised membrane ability to contractshorten and relaxlengthen movement in body Note: muscle cell = muscle fibre; contractile proteins known as (myo)fil...

Biological Sciences
BIOL125
hermant
BIOL125 Lecture Notes - Lecture 7: Schwann Cell, Synovial Membrane, Antibody

BIOL week 7 LC nervous system and musculoskeletal system through lifespan CNS = brain and spinal cord PNS = afferent neurons and efferent neurons Development of the nervous system Adult brain: o 100 billion neurons, 20 ...

Biological Sciences
BIOL125
hermant
BIOL125 Lecture Notes - Lecture 11: Tidal Volume, Lung Volumes, Respiratory Minute Volume

BIOL week 11 LA Control of airway resistance; Spirometry Respiratory Work Inspiration requires contraction of the inspiratory muscles o Muscle contraction requires energy, ATP is used, and force is generated work is perfo...

Biological Sciences
BIOL125
hermant
BIOL125 Lecture Notes - Lecture 10: Phrenic Nerve, No Air, Skeletal Muscle

BIO week 10 LC Pulmonary Ventilation Learning Objectives: Discuss the gross anatomy and functions of the rib cage, pleura and diaphragm Explain the relevance of Boyles law to breathing Define ventilation and explain its...

Biological Sciences
BIOL125
hermant
BIOL125 Lecture Notes - Lecture 9: Carotid Sinus, Thermoreceptor, Calcium Channel

BIOL week 9 LB Control of Cardiac Output Blood pressure (BP) terminology SBP = systolic blood pressure DBP = diastolic blood pressure PP = pulse pressure o Difference between systolic and diastolic pressure MAP = mean ...

Biological Sciences
BIOL125
hermant
BIOL125 Lecture Notes - Lecture 11: Acidosis, Blood Plasma, Peripheral Chemoreceptors

BIOL week 11 LB Gas Exchange and Gas Transport Respiration The process that provides the bodys cells with O and2removes the waste product CO 2 Respiration includes five separate processes: 1. Pulmonary ventilation o Move...

Biological Sciences
BIOL125
hermant
BIOL125 Lecture Notes - Lecture 11: Airway Obstruction, Alkalosis, Metabolic Acidosis

BIOL week 11 LC pH Homeostasis Basic Concepts: If [H ] increases, pH decreases Plasma pH = 7.4 The pH of arterial blood must remain within 6.87.8 o pH above 7.8 or below 6.8 is incompatible with life if pH changes prot...

Biological Sciences
BIOL125
hermant
BIOL125 Lecture Notes - Lecture 4: Epiphyseal Plate, Metaphysis, Clavicle

Bone Anatomy and Histology Bones - Bones are the major component of the Skeletal system; have many functions other than as support for other tissues - A living, active organ with a very good blood and ...

Biological Sciences
BIOL125
hermant
BIOL125 Lecture Notes - Lecture 4: Ulna, Synovial Fluid, Synovial Membrane

BIOL week 4 LB Skeleton and joints Hyaline cartilage - Most abundant skeletal cartilage - Flexible but resilient - Histology: o Chondrocytes singly or as cell nests embedded in an amorphous ...

Biological Sciences
BIOL125
hermant

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