Computer resources for heart anatomy and
Ex. 58. Anatomy of
CD-ROMís etc. in
ADAM Interactive Anatomy, ADAM Practice Practical,
ADAM comprehensive, ADAM Standard
Netterís Interactive Atlas
Human Anatomy (cadaver dissection) Gold Standard
Interactive Physiology Cardiovascular System
Ex. 59. Cardiovascular
Ex. 60. Heart Rate Control
Ex. 61-62. Electrocardiogram Monitoring
Models: Torso hearts plus other heart
Complete the Torso heart worksheet.
Preserved dissected pig heart
Pig hearts to dissect and/or examine
Use pig hearts instead of sheep hearts.
Video of Heart Dissection (30 min.)
Video of Open Heart Surgery (55 min.)
Use two or more of the computer resources
to study heart anatomy.
Refer to Digital Images on \\valshare\biology,
text (Hole) and Lecture slides (Ch. 15).
Complete the Lab Report (Benson pp.
Ex. 63. Pulse Monitoring
Follow BIOPAC procedures.
Biopac Lesson -- Introduction to the
Biopac -- ECG and Pulse Measurements
Biopac -- ECG Revisited: Einthoven's
Triangle Measurements. [Optional]
Biopac -- The Rhythm of the Heart.
Use BIOPAC tracings to complete the Lab Report
Use Biopac to measure:
PR interval (0.12-0.2 sec. Expected)
QT interval (less than 0.38 sec. Expected)
QRS complex (less than 0.10 sec. Expected)
Refer to text (Hole) and Lecture Slides.
Ex. 64. Blood Pressure
Use "Biopac Lesson -- ECG and Pulse Measurements"
to record pulse tracings.
Try to record data as called for in "Investigative
Procedure" Benson (also refer to Benson for sample pulse tracings).
Examine pulse tracings to see the dicrotic
notch (see figure Benson and explanation of the cause Benson).
Ex. 65. A Polygraph
Study of the Cardiac Cycle
This Exercise is usually completed during
Lab #2. Review and repeat this Exercise as necessary. [Stethoscope
Complete Parts A and C of the Lab Report (Benson).
Preparation for Lab
Quiz #3 and the Lab Midterm Exam:
This is the most important material to study
(see Benson's graph). Also refer to the text figure and lecture slides
Biopac Lesson -- ECG and Pulse Measurements
Label the Worksheet handout (page
9 of the Ch14-15 Worksheet deals with ECG).
Complete Part B of the Lab Report (Benson).
Be able to identify heart structures
and major vessels entering and exiting the heart from diagrams,
models, and preserved pig hearts (also cat hearts after we complete Lab
Be able to trace the path of blood
into, through, and out of the right and left sides of the heart. Be able
to name heart structures and major vessels when they are
When provided with an ECG tracing:
Be able to identify the PQRST portions. Be able to calculate BPM (heart
rate) whether or not a pulse tracing is provided.
Be able to name the events of the cardiac
cycle and relate them to: components of the ECG tracing, pressure changes
within the various heart chambers, systole and diastole of the ventricles,
the timing of valve openings and closings, etc. [Study the diagram in Hole.]
His: 1863-1934. Swiss cardiologist (son
of the renowned anatomist of the same name), who discovered (1893) the
specialized muscle fibers (known as the bundle of His) running along the
muscular partition between the left and right chambers of the heart. He
found that these fibers help communicate a single rhythm of contraction
to all parts of the heart. While a professor of medicine at the University
of Berlin (1907-26), His was one of the first to recognize that the heartbeat
has its origin in the individual cells of heart muscle.